CVE Watch16 oct 2026

CVE-2026-107833

OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, ProcessResponse in internal/bo

CVSS

5.9

Medio

EPSS

0.4%

p32

KEV

—

Exploit Today

0-100

Publicado: 9 oct 2026 · Última mod.: 16 oct 2026 · CWE-674

EPSS · 30d

0.4%EPSS · 30 días0.4%

2026-10-102026-10-23

Descripción técnica

OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, ProcessResponse in internal/bodyprocessors/json.go passes the ignoreJSONRecursionLimit value of -1 to readJSON, while the recursive guard only stops at zero. A network attacker who can cause an application protected by Coraza to return deeply nested JSON can make response-body processing perform quadratic work, consuming one CPU core for seconds per response within the default ResponseBodyLimit. Request JSON processing is not affected by this specific path because it uses the configured request recursion limit, and exploitation requires response-body inspection to be enabled. This issue is fixed in version 3.8.0.

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