cvedb.io
CVE-2022-39957
HIGH · CVSS 7.3
EPSS exploitation probability: 0%
Published 2022-09-20T07:15:12.353 · Last modified 2026-06-17T04:58:35.093

Summary

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.

Affected products

owasp — owasp_modsecurity_core_rule_set

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.