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Vulnerability details: VCID-7nj6-9exh-5qgr
Vulnerability ID VCID-7nj6-9exh-5qgr
Aliases CVE-2022-42252
GHSA-p22x-g9px-3945
Summary If Apache Tomcat 8.5.0 to 8.5.82, 9.0.0-M1 to 9.0.67, 10.0.0-M1 to 10.0.26 or 10.1.0-M1 to 10.1.0 was configured to ignore invalid HTTP headers via setting rejectIllegalHeader to false (the default for 8.5.x only), Tomcat did not reject a request containing an invalid Content-Length header making a request smuggling attack possible if Tomcat was located behind a reverse proxy that also failed to reject the request with the invalid header.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-20 Improper Input Validation
CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 4.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-42252.json
epss 0.00137 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00137 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00137 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00151 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00151 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00151 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00151 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00151 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00151 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
epss 0.00164 https://api.first.org/data/v1/epss?cve=CVE-2022-42252
apache_tomcat Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-42252
cvssv3.1 6.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-p22x-g9px-3945
cvssv3.1 7.5 https://github.com/apache/tomcat
generic_textual HIGH https://github.com/apache/tomcat
cvssv3.1 7.5 https://github.com/apache/tomcat/commit/0d089a15047faf9cb3c82f80f4d28febd4798920
generic_textual HIGH https://github.com/apache/tomcat/commit/0d089a15047faf9cb3c82f80f4d28febd4798920
cvssv3.1 7.5 https://github.com/apache/tomcat/commit/4c7f4fd09d2cc1692112ef70b8ee23a7a037ae77
generic_textual HIGH https://github.com/apache/tomcat/commit/4c7f4fd09d2cc1692112ef70b8ee23a7a037ae77
cvssv3.1 7.5 https://github.com/apache/tomcat/commit/a1c07906d8dcaf7957e5cc97f5cdbac7d18a205a
generic_textual HIGH https://github.com/apache/tomcat/commit/a1c07906d8dcaf7957e5cc97f5cdbac7d18a205a
cvssv3.1 7.5 https://github.com/apache/tomcat/commit/c9fe754e5d17e262dfbd3eab2a03ca96ff372dc3
generic_textual HIGH https://github.com/apache/tomcat/commit/c9fe754e5d17e262dfbd3eab2a03ca96ff372dc3
cvssv3.1 7.5 https://lists.apache.org/thread/zzcxzvqfdqn515zfs3dxb7n8gty589sq
generic_textual HIGH https://lists.apache.org/thread/zzcxzvqfdqn515zfs3dxb7n8gty589sq
ssvc Track https://lists.apache.org/thread/zzcxzvqfdqn515zfs3dxb7n8gty589sq
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2022-42252
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2022-42252
cvssv3.1 7.5 https://security.gentoo.org/glsa/202305-37
generic_textual HIGH https://security.gentoo.org/glsa/202305-37
ssvc Track https://security.gentoo.org/glsa/202305-37
cvssv3.1 7.5 https://tomcat.apache.org/security-10.html
generic_textual HIGH https://tomcat.apache.org/security-10.html
cvssv3.1 7.5 https://tomcat.apache.org/security-8.html
generic_textual HIGH https://tomcat.apache.org/security-8.html
cvssv3.1 7.5 https://tomcat.apache.org/security-9.html
generic_textual HIGH https://tomcat.apache.org/security-9.html
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-42252.json
https://api.first.org/data/v1/epss?cve=CVE-2022-42252
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/apache/tomcat
https://github.com/apache/tomcat/commit/0d089a15047faf9cb3c82f80f4d28febd4798920
https://github.com/apache/tomcat/commit/4c7f4fd09d2cc1692112ef70b8ee23a7a037ae77
https://github.com/apache/tomcat/commit/a1c07906d8dcaf7957e5cc97f5cdbac7d18a205a
https://github.com/apache/tomcat/commit/c9fe754e5d17e262dfbd3eab2a03ca96ff372dc3
https://lists.apache.org/thread/zzcxzvqfdqn515zfs3dxb7n8gty589sq
https://nvd.nist.gov/vuln/detail/CVE-2022-42252
https://security.gentoo.org/glsa/202305-37
https://tomcat.apache.org/security-10.html
https://tomcat.apache.org/security-8.html
https://tomcat.apache.org/security-9.html
2141329 https://bugzilla.redhat.com/show_bug.cgi?id=2141329
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
CVE-2022-42252 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-42252
GHSA-p22x-g9px-3945 https://github.com/advisories/GHSA-p22x-g9px-3945
RHSA-2023:1663 https://access.redhat.com/errata/RHSA-2023:1663
RHSA-2023:1664 https://access.redhat.com/errata/RHSA-2023:1664
USN-6880-1 https://usn.ubuntu.com/6880-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2022-42252.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

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high

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high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/apache/tomcat
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

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required

unchanged

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Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/apache/tomcat/commit/0d089a15047faf9cb3c82f80f4d28febd4798920
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/apache/tomcat/commit/4c7f4fd09d2cc1692112ef70b8ee23a7a037ae77
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/apache/tomcat/commit/a1c07906d8dcaf7957e5cc97f5cdbac7d18a205a
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/apache/tomcat/commit/c9fe754e5d17e262dfbd3eab2a03ca96ff372dc3
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://lists.apache.org/thread/zzcxzvqfdqn515zfs3dxb7n8gty589sq
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-05-06T15:08:43Z/ Found at https://lists.apache.org/thread/zzcxzvqfdqn515zfs3dxb7n8gty589sq
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2022-42252
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://security.gentoo.org/glsa/202305-37
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

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none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-05-06T15:08:43Z/ Found at https://security.gentoo.org/glsa/202305-37
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://tomcat.apache.org/security-10.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://tomcat.apache.org/security-8.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

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none

high

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none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://tomcat.apache.org/security-9.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.34475
EPSS Score 0.00137
Published At Aug. 1, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:03:17.508547+00:00 Apache Tomcat Importer Import https://tomcat.apache.org/security-10.html 37.0.0