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Lookup for vulnerable packages by Package URL.

Purlpkg:deb/debian/apache2@2.4.50-1?distro=trixie
Typedeb
Namespacedebian
Nameapache2
Version2.4.50-1
Qualifiers
distro trixie
Subpath
Is_vulnerablefalse
Next_non_vulnerable_version2.4.51-1~deb11u1
Latest_non_vulnerable_version2.4.66-8
Affected_by_vulnerabilities
Fixing_vulnerabilities
0
url VCID-ffpe-1ctd-77e9
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.

If 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.

This issue is known to be exploited in the wild.

This issue only affects Apache 2.4.49 and not earlier versions.
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-41773.json
reference_id
reference_type
scores
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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
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2021-41773
reference_id
reference_type
scores
0
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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
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reference_url https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
reference_id
reference_type
scores
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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
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reference_url http://www.openwall.com/lists/oss-security/2021/10/07/1
reference_id 1
reference_type
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scoring_system ssvc
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reference_url http://www.openwall.com/lists/oss-security/2021/10/05/2
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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
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reference_id 3
reference_type
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reference_id 3
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reference_type
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reference_url http://www.openwall.com/lists/oss-security/2021/10/08/5
reference_id 5
reference_type
scores
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reference_url http://www.openwall.com/lists/oss-security/2021/10/07/6
reference_id 6
reference_type
scores
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scoring_elements CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
1
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reference_url http://www.openwall.com/lists/oss-security/2021/10/08/6
reference_id 6
reference_type
scores
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1
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17
reference_url http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html
reference_id Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html
reference_type
scores
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scoring_system cvssv3.1
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1
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url http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html
18
reference_url http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal.html
reference_id Apache-HTTP-Server-2.4.49-Path-Traversal.html
reference_type
scores
0
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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
1
value Act
scoring_system ssvc
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url http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal.html
19
reference_url http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal-Remote-Code-Execution.html
reference_id Apache-HTTP-Server-2.4.49-Path-Traversal-Remote-Code-Execution.html
reference_type
scores
0
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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
1
value Act
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url http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal-Remote-Code-Execution.html
20
reference_url http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html
reference_id Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html
reference_type
scores
0
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1
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url http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html
21
reference_url https://security.archlinux.org/AVG-2442
reference_id AVG-2442
reference_type
scores
0
value High
scoring_system archlinux
scoring_elements
url https://security.archlinux.org/AVG-2442
22
reference_url https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ
reference_id cisco-sa-apache-httpd-pathtrv-LAzg68cZ
reference_type
scores
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1
value Act
scoring_system ssvc
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url https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ
23
reference_url https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/webapps/50383.sh
reference_id CVE-2021-41773
reference_type exploit
scores
url https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/webapps/50383.sh
24
reference_url https://httpd.apache.org/security/json/CVE-2021-41773.json
reference_id CVE-2021-41773
reference_type
scores
0
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scoring_system apache_httpd
scoring_elements
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25
reference_url https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/webapps/50512.py
reference_id CVE-2021-42013;CVE-2021-41773
reference_type exploit
scores
url https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/webapps/50512.py
26
reference_url https://security.gentoo.org/glsa/202208-20
reference_id GLSA-202208-20
reference_type
scores
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27
reference_url https://security.netapp.com/advisory/ntap-20211029-0009/
reference_id ntap-20211029-0009
reference_type
scores
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28
reference_url https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E
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fixed_packages
0
url pkg:deb/debian/apache2@0?distro=trixie
purl pkg:deb/debian/apache2@0?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/apache2@0%3Fdistro=trixie
1
url pkg:deb/debian/apache2@2.4.50-1?distro=trixie
purl pkg:deb/debian/apache2@2.4.50-1?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/apache2@2.4.50-1%3Fdistro=trixie
2
url pkg:deb/debian/apache2@2.4.62-1~deb11u1?distro=trixie
purl pkg:deb/debian/apache2@2.4.62-1~deb11u1?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/apache2@2.4.62-1~deb11u1%3Fdistro=trixie
3
url pkg:deb/debian/apache2@2.4.66-1~deb12u1?distro=trixie
purl pkg:deb/debian/apache2@2.4.66-1~deb12u1?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/apache2@2.4.66-1~deb12u1%3Fdistro=trixie
4
url pkg:deb/debian/apache2@2.4.66-1~deb13u2?distro=trixie
purl pkg:deb/debian/apache2@2.4.66-1~deb13u2?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/apache2@2.4.66-1~deb13u2%3Fdistro=trixie
5
url pkg:deb/debian/apache2@2.4.66-8?distro=trixie
purl pkg:deb/debian/apache2@2.4.66-8?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/apache2@2.4.66-8%3Fdistro=trixie
aliases CVE-2021-41773
risk_score 10.0
exploitability 2.0
weighted_severity 8.0
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-ffpe-1ctd-77e9
1
url VCID-hj5r-jms3-x3fe
vulnerability_id VCID-hj5r-jms3-x3fe
summary 
While fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing,
allowing an external source to DoS the server. This requires a specially crafted request. 

The vulnerability was recently introduced in version 2.4.49. No exploit is known to the project.
references
0
reference_url https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-41524.json
reference_id
reference_type
scores
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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
1
reference_url https://api.first.org/data/v1/epss?cve=CVE-2021-41524
reference_id
reference_type
scores
0
value 0.07103
scoring_system epss
scoring_elements 0.91488
published_at 2026-04-01T12:55:00Z
1
value 0.07103
scoring_system epss
scoring_elements 0.91533
published_at 2026-04-13T12:55:00Z
2
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scoring_system epss
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published_at 2026-04-11T12:55:00Z
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scoring_elements 0.91535
published_at 2026-04-12T12:55:00Z
4
value 0.07103
scoring_system epss
scoring_elements 0.91495
published_at 2026-04-02T12:55:00Z
5
value 0.07103
scoring_system epss
scoring_elements 0.91502
published_at 2026-04-04T12:55:00Z
6
value 0.07103
scoring_system epss
scoring_elements 0.9151
published_at 2026-04-07T12:55:00Z
7
value 0.07103
scoring_system epss
scoring_elements 0.91523
published_at 2026-04-08T12:55:00Z
8
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
2
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
3
reference_url https://security.archlinux.org/AVG-2442
reference_id AVG-2442
reference_type
scores
0
value High
scoring_system archlinux
scoring_elements
url https://security.archlinux.org/AVG-2442
4
reference_url https://httpd.apache.org/security/json/CVE-2021-41524.json
reference_id CVE-2021-41524
reference_type
scores
0
value moderate
scoring_system apache_httpd
scoring_elements
url https://httpd.apache.org/security/json/CVE-2021-41524.json
5
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
6
reference_url https://access.redhat.com/errata/RHSA-2022:7143
reference_id RHSA-2022:7143
reference_type
scores
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7
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
0
url pkg:deb/debian/apache2@0?distro=trixie
purl pkg:deb/debian/apache2@0?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/apache2@0%3Fdistro=trixie
1
url pkg:deb/debian/apache2@2.4.50-1?distro=trixie
purl pkg:deb/debian/apache2@2.4.50-1?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/apache2@2.4.50-1%3Fdistro=trixie
2
url pkg:deb/debian/apache2@2.4.62-1~deb11u1?distro=trixie
purl pkg:deb/debian/apache2@2.4.62-1~deb11u1?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/apache2@2.4.62-1~deb11u1%3Fdistro=trixie
3
url pkg:deb/debian/apache2@2.4.66-1~deb12u1?distro=trixie
purl pkg:deb/debian/apache2@2.4.66-1~deb12u1?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/apache2@2.4.66-1~deb12u1%3Fdistro=trixie
4
url pkg:deb/debian/apache2@2.4.66-1~deb13u2?distro=trixie
purl pkg:deb/debian/apache2@2.4.66-1~deb13u2?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/apache2@2.4.66-1~deb13u2%3Fdistro=trixie
5
url pkg:deb/debian/apache2@2.4.66-8?distro=trixie
purl pkg:deb/debian/apache2@2.4.66-8?distro=trixie
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:deb/debian/apache2@2.4.66-8%3Fdistro=trixie
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
Risk_scorenull
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:deb/debian/apache2@2.4.50-1%3Fdistro=trixie