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EUVD-2026-257685

fkie_cve-2022-39957

The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass. A client can issue an HTTP Accept header field containing an optional "charset" parameter in order to receive the response in an encoded form. Depending on the "charset", this response can not be decoded by the web application firewall. A restricted resource, access to which would ordinarily be detected, may therefore bypass detection. The legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and 3.3.2. Integrators and users are advised to upgrade to 3.2.2 and 3.3.3 respectively.

GHSA-cxqq-h5hh-jgq2

gsd-2022-39957

OESA-2022-1970 — mod_security_crs security update

Affected: openEuler:20.03-LTS-SP1: mod_security_crs, openEuler:20.03-LTS-SP3: mod_security_crs, openEuler:22.03-LTS: mod_security_crs

The base rules are provided for mod_security by this package. Security Fix(es): The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass to sequentially exfiltrate small and undetectable sections of data by repeatedly submitting an HTTP Range header field with a small byte range. A restricted resource, access to which would ordinarily be detected, may be exfiltrated from the backend, despite being protected by a web application firewall that uses CRS. Short subsections of a restricted resource may bypass pattern matching techniques and allow undetected access. The legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and 3.3.2. Integrators and users are advised to upgrade to 3.2.2 and 3.3.3 respectively and to configure a CRS paranoia level of 3 or higher.(CVE-2022-39958) The OWASP ModSecurity Core Rule Set (CRS) is affected by a response body bypass. A client can issue an HTTP Accept header field containing an optional "charset" parameter in order to receive the response in an encoded form. Depending on the "charset", this response can not be decoded by the web application firewall. A restricted resource, access to which would ordinarily be detected, may therefore bypass detection. The legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and 3.3.2. Integrators and users are advised to upgrade to 3.2.2 and 3.3.3 respectively.(CVE-20…

UBUNTU-CVE-2022-39957

Affected: Ubuntu:16.04:LTS: modsecurity-crs, Ubuntu:18.04:LTS: modsecurity-crs, Ubuntu:20.04:LTS: modsecurity-crs, Ubuntu:22.04:LTS: modsecurity-crs, Ubuntu:24.04:LTS: modsecurity-crs, Ubuntu:25.10: modsecurity-crs, Ubuntu:26.04:LTS: modsecurity-crs

WID-SEC-W-2022-1653 — Trustwave ModSecurity: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Trustwave ModSecurity ausnutzen, um Sicherheitsvorkehrungen zu umgehen und vertrauliche Informationen offenzulegen.