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Vulnerability · Published Nov 5, 2021 · Assigned by mitre

CVE-2021-35368

Critical 9.8

In plain English

A critical-severity security flaw in the modsecurity-crs package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.7% (higher than 86% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)2.7%top 13.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12modsecurity-crs3.3.2-1DEBIAN-CVE-2021-35368
Debian:13modsecurity-crs3.3.2-1DEBIAN-CVE-2021-35368
Debian:14modsecurity-crs3.3.2-1DEBIAN-CVE-2021-35368
Ubuntu:22.04:LTSmodsecurity-crsno fix listedUBUNTU-CVE-2021-35368
Ubuntu:24.04:LTSmodsecurity-crsno fix listedUBUNTU-CVE-2021-35368
Ubuntu:25.10modsecurity-crsno fix listedUBUNTU-CVE-2021-35368
Ubuntu:26.04:LTSmodsecurity-crsno fix listedUBUNTU-CVE-2021-35368
Ubuntu:26.10modsecurity-crsno fix listedUBUNTU-CVE-2021-35368

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References