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Vulnerability record · CVE-2021-35368 · published 5 November 2021

CVE-2021-35368: Owasp modsecurity core rule set vulnerability

Owasp · Owasp Modsecurity Core Rule Set

OWASP ModSecurity Core Rule Set 3.1.x before 3.1.2, 3.2.x before 3.2.1, and 3.3.x before 3.3.2 is affected by a Request Body Bypass via a trailing pathname.

9.8 CVSS 3.1 Critical EPSS 2.7% · top 14.5%
9.8CVSS 3.1 base score, v2 7.5
2.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
16References, 6 tagged exploit
17 Jun 2026Last modified by NVD

Description

OWASP ModSecurity Core Rule Set 3.1.x before 3.1.2, 3.2.x before 3.2.1, and 3.3.x before 3.3.2 is affected by a Request Body Bypass via a trailing pathname.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://coreruleset.org/20210630/cve-2021-35368-crs-request-body-bypass/ ExploitRelease NotesVendor Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00033.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MS5GMNYHFFIBWLJW7N3XAD
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IVYUJOKHDEXFTM2CZMEESJ6
https://owasp.org/www-project-modsecurity-core-rule-set/ Vendor Advisory
https://portswigger.net/daily-swig/lessons-learned-how-a-severe-vulnerability-in-the-owasp-modsecurity-core-rule-set-spa ExploitThird Party Advisory
https://portswigger.net/daily-swig/waf-bypass-severe-owasp-modsecurity-core-rule-set-bug-was-present-for-several-years ExploitThird Party Advisory
https://security.gentoo.org/glsa/202305-25
https://coreruleset.org/20210630/cve-2021-35368-crs-request-body-bypass/ ExploitRelease NotesVendor Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00033.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MS5GMNYHFFIBWLJW7N3XAD
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IVYUJOKHDEXFTM2CZMEESJ6
https://owasp.org/www-project-modsecurity-core-rule-set/ Vendor Advisory
https://portswigger.net/daily-swig/lessons-learned-how-a-severe-vulnerability-in-the-owasp-modsecurity-core-rule-set-spa ExploitThird Party Advisory
https://portswigger.net/daily-swig/waf-bypass-severe-owasp-modsecurity-core-rule-set-bug-was-present-for-several-years ExploitThird Party Advisory
https://security.gentoo.org/glsa/202305-25

Track CVE-2021-35368 inside VULONE

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Source: NIST National Vulnerability Database (record CVE-2021-35368), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.