{"url":"http://public2.vulnerablecode.io/api/packages/567?format=json","purl":"pkg:apache/httpd@2.4.51","type":"apache","namespace":"","name":"httpd","version":"2.4.51","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"2.4.54","latest_non_vulnerable_version":"2.4.54","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/3824?format=json","vulnerability_id":"VCID-cqjv-6m9n-mfeq","summary":"A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery).\n\nThis issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-44224.json","reference_id":"","reference_type":"","scores":[{"value":"7.1","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-44224.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-44224","reference_id":"","reference_type":"","scores":[{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.93382","published_at":"2026-04-01T12:55:00Z"},{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.93472","published_at":"2026-05-09T12:55:00Z"},{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.93449","published_at":"2026-05-05T12:55:00Z"},{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.93462","published_at":"2026-05-07T12:55:00Z"},{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.9339","published_at":"2026-04-02T12:55:00Z"},{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.93398","published_at":"2026-04-07T12:55:00Z"},{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.93406","published_at":"2026-04-08T12:55:00Z"},{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.93409","published_at":"2026-04-09T12:55:00Z"},{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.93415","published_at":"2026-04-13T12:55:00Z"},{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.93414","published_at":"2026-04-12T12:55:00Z"},{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.93434","published_at":"2026-04-16T12:55:00Z"},{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.93439","published_at":"2026-04-18T12:55:00Z"},{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.93444","published_at":"2026-04-26T12:55:00Z"},{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.93448","published_at":"2026-04-24T12:55:00Z"},{"value":"0.1096","scoring_system":"epss","scoring_elements":"0.93443","published_at":"2026-04-29T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-44224"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44224","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44224"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44790","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44790"},{"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=2034672","reference_id":"2034672","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2034672"},{"reference_url":"https://httpd.apache.org/security/json/CVE-2021-44224.json","reference_id":"CVE-2021-44224","reference_type":"","scores":[{"value":"moderate","scoring_system":"apache_httpd","scoring_elements":""}],"url":"https://httpd.apache.org/security/json/CVE-2021-44224.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/5212-1/","reference_id":"USN-5212-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/5212-1/"},{"reference_url":"https://usn.ubuntu.com/5212-2/","reference_id":"USN-5212-2","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/5212-2/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/568?format=json","purl":"pkg:apache/httpd@2.4.52","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-g55m-t4s1-nfhv"},{"vulnerability":"VCID-k4nk-qqxg-s7e6"},{"vulnerability":"VCID-pnc8-bb23-vqh1"},{"vulnerability":"VCID-xfm9-e5nr-wyat"}],"resource_url":"http://public2.vulne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carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts).\nThe Apache httpd team is not aware of an exploit for the vulnerabilty though it might be possible to craft one.\n\nThis issue affects Apache HTTP Server 2.4.51 and earlier.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-44790.json","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-44790.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-44790","reference_id":"","reference_type":"","scores":[{"value":"0.86011","scoring_system":"epss","scoring_elements":"0.99393","published_at":"2026-04-13T12:55:00Z"},{"value":"0.86011","scoring_system":"epss","scoring_elements":"0.99396","published_at":"2026-04-26T12:55:00Z"},{"value":"0.86011","scoring_system":"epss","scoring_elements":"0.99394","published_at":"2026-04-21T12:55:00Z"},{"value":"0.86011","scoring_system":"epss","scoring_elements":"0.99395","published_at":"2026-04-24T12:55:00Z"},{"value":"0.86227","scoring_system":"epss","scoring_elements":"0.99409","published_at":"2026-05-09T12:55:00Z"},{"value":"0.86227","scoring_system":"epss","scoring_elements":"0.99407","published_at":"2026-05-07T12:55:00Z"},{"value":"0.86227","scoring_system":"epss","scoring_elements":"0.99406","published_at":"2026-05-05T12:55:00Z"},{"value":"0.87092","scoring_system":"epss","scoring_elements":"0.99437","published_at":"2026-04-02T12:55:00Z"},{"value":"0.87092","scoring_system":"epss","scoring_elements":"0.99438","published_at":"2026-04-01T12:55:00Z"},{"value":"0.87092","scoring_system":"epss","scoring_elements":"0.99441","published_at":"2026-04-09T12:55:00Z"},{"value":"0.87092","scoring_system":"epss","scoring_elements":"0.99439","published_at":"2026-04-07T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-44790"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44224","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44224"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44790","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44790"},{"reference_url":"https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml","reference_id":"","reference_type":"","scores":[{"value":"9.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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=2034674","reference_id":"2034674","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2034674"},{"reference_url":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/webapps/51193.py","reference_id":"CVE-2021-44790","reference_type":"exploit","scores":[],"url":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/webapps/51193.py"},{"reference_url":"https://httpd.apache.org/security/json/CVE-2021-44790.json","reference_id":"CVE-2021-44790","reference_type":"","scores":[{"value":"important","scoring_system":"apache_httpd","scoring_elements":""}],"url":"https://httpd.apache.org/security/json/CVE-2021-44790.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-2022:0258","reference_id":"RHSA-2022:0258","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:0258"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:0288","reference_id":"RHSA-2022:0288","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:0288"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:0303","reference_id":"RHSA-2022:0303","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:0303"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:1136","reference_id":"RHSA-2022:1136","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:1136"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:1137","reference_id":"RHSA-2022:1137","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:1137"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:1138","reference_id":"RHSA-2022:1138","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:1138"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:1139","reference_id":"RHSA-2022:1139","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:1139"},{"reference_url":"https://usn.ubuntu.com/5212-1/","reference_id":"USN-5212-1","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/5212-1/"},{"reference_url":"https://usn.ubuntu.com/5212-2/","reference_id":"USN-5212-2","reference_type":"","scores":[],"url":"https://usn.ubuntu.com/5212-2/"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/568?format=json","purl":"pkg:apache/httpd@2.4.52","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-g55m-t4s1-nfhv"},{"vulnerability":"VCID-k4nk-qqxg-s7e6"},{"vulnerability":"VCID-pnc8-bb23-vqh1"},{"vulnerability":"VCID-xfm9-e5nr-wyat"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:apache/httpd@2.4.52"}],"aliases":["CVE-2021-44790"],"risk_score":10.0,"exploitability":"2.0","weighted_severity":"8.8","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-xwnu-h1xh-3bg6"}],"fixing_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/3823?format=json","vulnerability_id":"VCID-qn74-neyt-jkg9","summary":"It was found that the fix for CVE-2021-41773 in Apache HTTP Server 2.4.50 was insufficient.  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 only affects Apache 2.4.49 and Apache 2.4.50 and not earlier 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