{"url":"http://public2.vulnerablecode.io/api/packages/371879?format=json","purl":"pkg:alpm/archlinux/apache@2.4.49-1","type":"alpm","namespace":"archlinux","name":"apache","version":"2.4.49-1","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"2.4.51-1","latest_non_vulnerable_version":"2.4.55-1","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/3822?format=json","vulnerability_id":"VCID-ffpe-1ctd-77e9","summary":"A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives.\n\nIf files outside of these directories are not protected by the usual default configuration \"require all denied\", these requests can succeed. If CGI scripts are also enabled for these aliased pathes, this could allow for remote code execution.\n\nThis issue is known to be exploited in the wild.\n\nThis issue only affects Apache 2.4.49 and not earlier versions.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-41773.json","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-41773.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-41773","reference_id":"","reference_type":"","scores":[{"value":"0.94391","scoring_system":"epss","scoring_elements":"0.99973","published_at":"2026-04-13T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-41773"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"http://www.openwall.com/lists/oss-security/2021/10/07/1","reference_id":"1","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"Act","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:Y/T:T/P:M/B:A/M:M/D:C/2025-02-04T14:41:10Z/"}],"url":"http://www.openwall.com/lists/oss-security/2021/10/07/1"},{"reference_url":"http://www.openwall.com/lists/oss-security/2021/10/08/1","reference_id":"1","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"Act","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:Y/T:T/P:M/B:A/M:M/D:C/2025-02-04T14:41:10Z/"}],"url":"http://www.openwall.com/lists/oss-security/2021/10/08/1"},{"reference_url":"http://www.openwall.com/lists/oss-security/2021/10/09/1","reference_id":"1","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"Act","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:Y/T:T/P:M/B:A/M:M/D:C/2025-02-04T14:41:10Z/"}],"url":"http://www.openwall.com/lists/oss-security/2021/10/09/1"},{"reference_url":"http://www.openwall.com/lists/oss-security/2021/10/16/1","reference_id":"1","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"Act","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:Y/T:T/P:M/B:A/M:M/D:C/2025-02-04T14:41:10Z/"}],"url":"http://www.openwall.com/lists/oss-security/2021/10/16/1"},{"reference_url":"http://www.openwall.com/lists/oss-security/2021/10/05/2","reference_id":"2","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"Act","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:Y/T:T/P:M/B:A/M:M/D:C/2025-02-04T14:41:10Z/"}],"url":"http://www.openwall.com/lists/oss-security/2021/10/05/2"},{"reference_url":"http://www.openwall.com/lists/oss-security/2021/10/08/2","reference_id":"2","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"Act","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:Y/T:T/P:M/B:A/M:M/D:C/2025-02-04T14:41:10Z/"}],"url":"http://www.openwall.com/lists/oss-security/2021/10/08/2"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2010757","reference_id":"2010757","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2010757"},{"reference_url":"http://www.openwall.com/lists/oss-security/2021/10/08/3","reference_id":"3","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"Act","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:Y/T:T/P:M/B:A/M:M/D:C/2025-02-04T14:41:10Z/"}],"url":"http://www.openwall.com/lists/oss-security/2021/10/08/3"},{"reference_url":"http://www.openwall.com/lists/oss-security/2021/10/15/3","reference_id":"3","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"Act","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:Y/T:T/P:M/B:A/M:M/D:C/2025-02-04T14:41:10Z/"}],"url":"http://www.openwall.com/lists/oss-security/2021/10/15/3"},{"reference_url":"http://www.openwall.com/lists/oss-security/2021/10/08/4","reference_id":"4","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"Act","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:Y/T:T/P:M/B:A/M:M/D:C/2025-02-04T14:41:10Z/"}],"url":"http://www.openwall.com/lists/oss-security/2021/10/08/4"},{"reference_url":"http://www.openwall.com/lists/oss-security/2021/10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fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing,\nallowing an external source to DoS the server. This requires a specially crafted request. \n\nThe vulnerability was recently introduced in version 2.4.49. No exploit is known to the project.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-41524.json","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-41524.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-41524","reference_id":"","reference_type":"","scores":[{"value":"0.07103","scoring_system":"epss","scoring_elements":"0.91488","published_at":"2026-04-01T12:55:00Z"},{"value":"0.07103","scoring_system":"epss","scoring_elements":"0.91533","published_at":"2026-04-13T12:55:00Z"},{"value":"0.07103","scoring_system":"epss","scoring_elements":"0.91534","published_at":"2026-04-11T12:55:00Z"},{"value":"0.07103","scoring_system":"epss","scoring_elements":"0.91535","published_at":"2026-04-12T12:55:00Z"},{"value":"0.07103","scoring_system":"epss","scoring_elements":"0.91495","published_at":"2026-04-02T12:55:00Z"},{"value":"0.07103","scoring_system":"epss","scoring_elements":"0.91502","published_at":"2026-04-04T12:55:00Z"},{"value":"0.07103","scoring_system":"epss","scoring_elements":"0.9151","published_at":"2026-04-07T12:55:00Z"},{"value":"0.07103","scoring_system":"epss","scoring_elements":"0.91523","published_at":"2026-04-08T12:55:00Z"},{"value":"0.07103","scoring_system":"epss","scoring_elements":"0.91529","published_at":"2026-04-09T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-41524"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2010934","reference_id":"2010934","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2010934"},{"reference_url":"https://security.archlinux.org/AVG-2442","reference_id":"AVG-2442","reference_type":"","scores":[{"value":"High","scoring_system":"archlinux","scoring_elements":""}],"url":"https://security.archlinux.org/AVG-2442"},{"reference_url":"https://httpd.apache.org/security/json/CVE-2021-41524.json","reference_id":"CVE-2021-41524","reference_type":"","scores":[{"value":"moderate","scoring_system":"apache_httpd","scoring_elements":""}],"url":"https://httpd.apache.org/security/json/CVE-2021-41524.json"},{"reference_url":"https://security.gentoo.org/glsa/202208-20","reference_id":"GLSA-202208-20","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202208-20"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:7143","reference_id":"RHSA-2022:7143","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:7143"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:7144","reference_id":"RHSA-2022:7144","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:7144"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/371170?format=json","purl":"pkg:alpm/archlinux/apache@2.4.50-1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-qn74-neyt-jkg9"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/apache@2.4.50-1"}],"aliases":["CVE-2021-41524"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-hj5r-jms3-x3fe"}],"fixing_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/3817?format=json","vulnerability_id":"VCID-9u53-b79b-cfgd","summary":"Malformed requests may cause the server to dereference a NULL pointer.\n\n\nThis issue affects Apache HTTP Server 2.4.48 and earlier.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-34798.json","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-34798.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-34798","reference_id":"","reference_type":"","scores":[{"value":"0.1029","scoring_system":"epss","scoring_elements":"0.93141","published_at":"2026-04-01T12:55:00Z"},{"value":"0.1029","scoring_system":"epss","scoring_elements":"0.93171","published_at":"2026-04-13T12:55:00Z"},{"value":"0.1029","scoring_system":"epss","scoring_elements":"0.93166","published_at":"2026-04-09T12:55:00Z"},{"value":"0.1029","scoring_system":"epss","scoring_elements":"0.93172","published_at":"2026-04-11T12:55:00Z"},{"value":"0.1029","scoring_system":"epss","scoring_elements":"0.93169","published_at":"2026-04-12T12:55:00Z"},{"value":"0.1029","scoring_system":"epss","scoring_elements":"0.93151","published_at":"2026-04-02T12:55:00Z"},{"value":"0.1029","scoring_system":"epss","scoring_elements":"0.93154","published_at":"2026-04-04T12:55:00Z"},{"value":"0.1029","scoring_system":"epss","scoring_elements":"0.93153","published_at":"2026-04-07T12:55:00Z"},{"value":"0.1029","scoring_system":"epss","scoring_elements":"0.93162","published_at":"2026-04-08T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-34798"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34798","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34798"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36160","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36160"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39275","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39275"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40438","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40438"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2005128","reference_id":"2005128","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2005128"},{"reference_url":"https://security.archlinux.org/AVG-2289","reference_id":"AVG-2289","reference_type":"","scores":[{"value":"High","scoring_system":"archlinux","scoring_elements":""}],"url":"https://security.archlinux.org/AVG-2289"},{"reference_url":"https://httpd.apache.org/security/json/CVE-2021-34798.json","reference_id":"CVE-2021-34798","reference_type":"","scores":[{"value":"moderate","scoring_system":"apache_httpd","scoring_elements":""}],"url":"https://httpd.apache.org/security/json/CVE-2021-34798.json"},{"reference_url":"https://security.gentoo.org/glsa/202208-20","reference_id":"GLSA-202208-20","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202208-20"},{"reference_url":"https://access.redhat.com/errata/RHSA-2021:4613","reference_id":"RHSA-2021:4613","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2021:4613"},{"reference_url":"https://access.redhat.com/errata/RHSA-2021:4614","reference_id":"RHSA-2021:4614","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2021:4614"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:0143","reference_id":"RHSA-2022:0143","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:0143"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:0891","reference_id":"RHSA-2022:0891","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:0891"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:6753","reference_id":"RHSA-2022:6753","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:6753"},{"reference_url":"https://usn.ubuntu.com/5090-1/","reference_id":"USN-5090-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/5090-1/"},{"reference_url":"https://usn.ubuntu.com/5090-2/","reference_id":"USN-5090-2","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/5090-2/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/371879?format=json","purl":"pkg:alpm/archlinux/apache@2.4.49-1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-ffpe-1ctd-77e9"},{"vulnerability":"VCID-hj5r-jms3-x3fe"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/apache@2.4.49-1"}],"aliases":["CVE-2021-34798"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-9u53-b79b-cfgd"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/3816?format=json","vulnerability_id":"VCID-db6k-j9mj-e7hy","summary":"A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning.\n\nThis issue affects Apache HTTP Server 2.4.17 to 2.4.48.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-33193.json","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-33193.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-33193","reference_id":"","reference_type":"","scores":[{"value":"0.00739","scoring_system":"epss","scoring_elements":"0.72839","published_at":"2026-04-01T12:55:00Z"},{"value":"0.00739","scoring_system":"epss","scoring_elements":"0.729","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00739","scoring_system":"epss","scoring_elements":"0.72879","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00739","scoring_system":"epss","scoring_elements":"0.72892","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00739","scoring_system":"epss","scoring_elements":"0.72917","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00739","scoring_system":"epss","scoring_elements":"0.72846","published_at":"2026-04-02T12:55:00Z"},{"value":"0.00739","scoring_system":"epss","scoring_elements":"0.72866","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00739","scoring_system":"epss","scoring_elements":"0.72841","published_at":"2026-04-07T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-33193"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33193","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33193"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"9.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=1966728","reference_id":"1966728","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1966728"},{"reference_url":"https://security.archlinux.org/AVG-2289","reference_id":"AVG-2289","reference_type":"","scores":[{"value":"High","scoring_system":"archlinux","scoring_elements":""}],"url":"https://security.archlinux.org/AVG-2289"},{"reference_url":"https://httpd.apache.org/security/json/CVE-2021-33193.json","reference_id":"CVE-2021-33193","reference_type":"","scores":[{"value":"moderate","scoring_system":"apache_httpd","scoring_elements":""}],"url":"https://httpd.apache.org/security/json/CVE-2021-33193.json"},{"reference_url":"https://security.gentoo.org/glsa/202208-20","reference_id":"GLSA-202208-20","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202208-20"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:1915","reference_id":"RHSA-2022:1915","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:1915"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:6753","reference_id":"RHSA-2022:6753","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:6753"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:7143","reference_id":"RHSA-2022:7143","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:7143"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:7144","reference_id":"RHSA-2022:7144","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:7144"},{"reference_url":"https://usn.ubuntu.com/5090-1/","reference_id":"USN-5090-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/5090-1/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/371879?format=json","purl":"pkg:alpm/archlinux/apache@2.4.49-1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-ffpe-1ctd-77e9"},{"vulnerability":"VCID-hj5r-jms3-x3fe"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/apache@2.4.49-1"}],"aliases":["CVE-2021-33193"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-db6k-j9mj-e7hy"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/3820?format=json","vulnerability_id":"VCID-mtg7-8556-kbgd","summary":"A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user.\n\nThis issue affects Apache HTTP Server 2.4.48 and earlier.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-40438.json","reference_id":"","reference_type":"","scores":[{"value":"9.0","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-40438.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-40438","reference_id":"","reference_type":"","scores":[{"value":"0.94432","scoring_system":"epss","scoring_elements":"0.99985","published_at":"2026-04-13T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-40438"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34798","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34798"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36160","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36160"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39275","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39275"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40438","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40438"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2005117","reference_id":"2005117","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2005117"},{"reference_url":"https://security.archlinux.org/AVG-2289","reference_id":"AVG-2289","reference_type":"","scores":[{"value":"High","scoring_system":"archlinux","scoring_elements":""}],"url":"https://security.archlinux.org/AVG-2289"},{"reference_url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ","reference_id":"cisco-sa-apache-httpd-2.4.49-VWL69sWQ","reference_type":"","scores":[{"value":"9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"Attend","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-06T21:08:29Z/"}],"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ"},{"reference_url":"https://httpd.apache.org/security/json/CVE-2021-40438.json","reference_id":"CVE-2021-40438","reference_type":"","scores":[{"value":"important","scoring_system":"apache_httpd","scoring_elements":""}],"url":"https://httpd.apache.org/security/json/CVE-2021-40438.json"},{"reference_url":"https://www.debian.org/security/2021/dsa-4982","reference_id":"dsa-4982","reference_type":"","scores":[{"value":"9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"Attend","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-06T21:08:29Z/"}],"url":"https://www.debian.org/security/2021/dsa-4982"},{"reference_url":"https://security.gentoo.org/glsa/202208-20","reference_id":"GLSA-202208-20","reference_type":"","scores":[{"value":"9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"Attend","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-06T21:08:29Z/"}],"url":"https://security.gentoo.org/glsa/202208-20"},{"reference_url":"https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html","reference_id":"msg00001.html","reference_type":"","scores":[{"value":"9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"Attend","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-06T21:08:29Z/"}],"url":"https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html"},{"reference_url":"https://security.netapp.com/advisory/ntap-20211008-0004/","reference_id":"ntap-20211008-0004","reference_type":"","scores":[{"value":"9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"Attend","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-06T21:08:29Z/"}],"url":"https://security.netapp.com/advisory/ntap-20211008-0004/"},{"reference_url":"https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a%40%3Cusers.httpd.apache.org%3E","reference_id":"r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a%40%3Cusers.httpd.apache.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com/errata/RHSA-2021:3816"},{"reference_url":"https://access.redhat.com/errata/RHSA-2021:3836","reference_id":"RHSA-2021:3836","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2021:3836"},{"reference_url":"https://access.redhat.com/errata/RHSA-2021:3837","reference_id":"RHSA-2021:3837","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2021:3837"},{"reference_url":"https://access.redhat.com/errata/RHSA-2021:3856","reference_id":"RHSA-2021:3856","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2021:3856"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/","reference_id":"SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD","reference_type":"","scores":[{"value":"9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"Attend","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-06T21:08:29Z/"}],"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/"},{"reference_url":"https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf","reference_id":"ssa-685781.pdf","reference_type":"","scores":[{"value":"9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"Attend","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-06T21:08:29Z/"}],"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf"},{"reference_url":"https://www.tenable.com/security/tns-2021-17","reference_id":"tns-2021-17","reference_type":"","scores":[{"value":"9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"Attend","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-06T21:08:29Z/"}],"url":"https://www.tenable.com/security/tns-2021-17"},{"reference_url":"https://usn.ubuntu.com/5090-1/","reference_id":"USN-5090-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/5090-1/"},{"reference_url":"https://usn.ubuntu.com/5090-2/","reference_id":"USN-5090-2","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/5090-2/"},{"reference_url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/","reference_id":"ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R","reference_type":"","scores":[{"value":"9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"Attend","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-06T21:08:29Z/"}],"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/371879?format=json","purl":"pkg:alpm/archlinux/apache@2.4.49-1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-ffpe-1ctd-77e9"},{"vulnerability":"VCID-hj5r-jms3-x3fe"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/apache@2.4.49-1"}],"aliases":["CVE-2021-40438"],"risk_score":10.0,"exploitability":"2.0","weighted_severity":"8.1","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-mtg7-8556-kbgd"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/3818?format=json","vulnerability_id":"VCID-rdtq-8ng5-53fn","summary":"A carefully crafted request uri-path can cause mod_proxy_uwsgi to read above the allocated memory and crash (DoS).\n\nThis issue affects Apache HTTP Server versions 2.4.30 to 2.4.48 (inclusive).","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-36160.json","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-36160.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-36160","reference_id":"","reference_type":"","scores":[{"value":"0.03716","scoring_system":"epss","scoring_elements":"0.8792","published_at":"2026-04-01T12:55:00Z"},{"value":"0.03716","scoring_system":"epss","scoring_elements":"0.87977","published_at":"2026-04-13T12:55:00Z"},{"value":"0.03716","scoring_system":"epss","scoring_elements":"0.87974","published_at":"2026-04-09T12:55:00Z"},{"value":"0.03716","scoring_system":"epss","scoring_elements":"0.87985","published_at":"2026-04-11T12:55:00Z"},{"value":"0.03716","scoring_system":"epss","scoring_elements":"0.87978","published_at":"2026-04-12T12:55:00Z"},{"value":"0.03716","scoring_system":"epss","scoring_elements":"0.8793","published_at":"2026-04-02T12:55:00Z"},{"value":"0.03716","scoring_system":"epss","scoring_elements":"0.87943","published_at":"2026-04-04T12:55:00Z"},{"value":"0.03716","scoring_system":"epss","scoring_elements":"0.87947","published_at":"2026-04-07T12:55:00Z"},{"value":"0.03716","scoring_system":"epss","scoring_elements":"0.87968","published_at":"2026-04-08T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-36160"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34798","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34798"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36160","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36160"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39275","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39275"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40438","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40438"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2005124","reference_id":"2005124","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2005124"},{"reference_url":"https://security.archlinux.org/AVG-2289","reference_id":"AVG-2289","reference_type":"","scores":[{"value":"High","scoring_system":"archlinux","scoring_elements":""}],"url":"https://security.archlinux.org/AVG-2289"},{"reference_url":"https://httpd.apache.org/security/json/CVE-2021-36160.json","reference_id":"CVE-2021-36160","reference_type":"","scores":[{"value":"moderate","scoring_system":"apache_httpd","scoring_elements":""}],"url":"https://httpd.apache.org/security/json/CVE-2021-36160.json"},{"reference_url":"https://security.gentoo.org/glsa/202208-20","reference_id":"GLSA-202208-20","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202208-20"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:1915","reference_id":"RHSA-2022:1915","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:1915"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:6753","reference_id":"RHSA-2022:6753","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:6753"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:7143","reference_id":"RHSA-2022:7143","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:7143"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:7144","reference_id":"RHSA-2022:7144","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:7144"},{"reference_url":"https://usn.ubuntu.com/5090-1/","reference_id":"USN-5090-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/5090-1/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/371879?format=json","purl":"pkg:alpm/archlinux/apache@2.4.49-1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-ffpe-1ctd-77e9"},{"vulnerability":"VCID-hj5r-jms3-x3fe"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/apache@2.4.49-1"}],"aliases":["CVE-2021-36160"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-rdtq-8ng5-53fn"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/3819?format=json","vulnerability_id":"VCID-wrw6-uzz4-rkfb","summary":"ap_escape_quotes() may write beyond the end of a buffer when given malicious input.  \nNo included modules pass untrusted data to these functions, but third-party / external modules may.\n\nThis issue affects Apache HTTP Server 2.4.48 and earlier.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-39275.json","reference_id":"","reference_type":"","scores":[{"value":"8.1","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-39275.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-39275","reference_id":"","reference_type":"","scores":[{"value":"0.37674","scoring_system":"epss","scoring_elements":"0.97171","published_at":"2026-04-01T12:55:00Z"},{"value":"0.37674","scoring_system":"epss","scoring_elements":"0.97199","published_at":"2026-04-13T12:55:00Z"},{"value":"0.37674","scoring_system":"epss","scoring_elements":"0.97193","published_at":"2026-04-08T12:55:00Z"},{"value":"0.37674","scoring_system":"epss","scoring_elements":"0.97194","published_at":"2026-04-09T12:55:00Z"},{"value":"0.37674","scoring_system":"epss","scoring_elements":"0.97198","published_at":"2026-04-11T12:55:00Z"},{"value":"0.37674","scoring_system":"epss","scoring_elements":"0.97177","published_at":"2026-04-02T12:55:00Z"},{"value":"0.37674","scoring_system":"epss","scoring_elements":"0.97183","published_at":"2026-04-07T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-39275"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34798","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34798"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36160","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36160"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39275","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39275"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40438","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40438"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"7.5","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2005119","reference_id":"2005119","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2005119"},{"reference_url":"https://security.archlinux.org/AVG-2289","reference_id":"AVG-2289","reference_type":"","scores":[{"value":"High","scoring_system":"archlinux","scoring_elements":""}],"url":"https://security.archlinux.org/AVG-2289"},{"reference_url":"https://httpd.apache.org/security/json/CVE-2021-39275.json","reference_id":"CVE-2021-39275","reference_type":"","scores":[{"value":"low","scoring_system":"apache_httpd","scoring_elements":""}],"url":"https://httpd.apache.org/security/json/CVE-2021-39275.json"},{"reference_url":"https://security.gentoo.org/glsa/202208-20","reference_id":"GLSA-202208-20","reference_type":"","scores":[],"url":"https://security.gentoo.org/glsa/202208-20"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:0143","reference_id":"RHSA-2022:0143","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:0143"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:0891","reference_id":"RHSA-2022:0891","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:0891"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:6753","reference_id":"RHSA-2022:6753","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:6753"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:7143","reference_id":"RHSA-2022:7143","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:7143"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:7144","reference_id":"RHSA-2022:7144","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:7144"},{"reference_url":"https://usn.ubuntu.com/5090-1/","reference_id":"USN-5090-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/5090-1/"},{"reference_url":"https://usn.ubuntu.com/5090-2/","reference_id":"USN-5090-2","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/5090-2/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/371879?format=json","purl":"pkg:alpm/archlinux/apache@2.4.49-1","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-ffpe-1ctd-77e9"},{"vulnerability":"VCID-hj5r-jms3-x3fe"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/apache@2.4.49-1"}],"aliases":["CVE-2021-39275"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-wrw6-uzz4-rkfb"}],"risk_score":"10.0","resource_url":"http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/apache@2.4.49-1"}