CVE Watch11 nov 2026

CVE-2026-61619

The OWASP core rule set (CRS) is a set of generic attack detection rules for use with compatible web application firewalls. Prior to version

CVSS

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Sin CVSS

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 11 nov 2026 · Última mod.: 11 nov 2026 · CWE-1333

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

The OWASP core rule set (CRS) is a set of generic attack detection rules for use with compatible web application firewalls. Prior to versions 3.3.10, 4.25.1, and 4.28.0, regular-expression denial of service (ReDoS) affects a shared regex-assembly include used to build 12 Unix RCE detection rules in CRS v4, and the same ambiguous pattern was present in the manually-assembled regexes in 4 rules in CRS v3.3. With a single, unauthenticated, crafted request, the generated pattern drives PCRE2 past its backtracking limit. When PCRE2 exceeds that limit, the @rx operator returns an error rather than a match result, which results in detection bypass and CPU denial of service. This issue has been patched in versions 3.3.10, 4.25.1, and 4.28.0.

Referencias oficiales

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