CVE-2026-107835: fallo de gravedad media en corazawaf coraza
OWASP Coraza WAF: Cookie Parser Confusion
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 4epss 0.3%
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. Prior to 3.8.1, internal/cookies.ParseCookies in internal/cookies/cookies.go handles boundary ASCII control characters and control-only or empty cookie names differently from several backend cookie parsers. An unauthenticated attacker can craft a Cookie header so Coraza indexes or drops a cookie under a different name or value from the backend application, causing rules targeting REQUEST_COOKIES or REQUEST_COOKIES_NAMES to miss application-visible attacker data. Exploitation depends on the backend parser and affected rule scope, and interior control characters with inconsistent backend behavior are outside this advisory's remediation. This issue is fixed in version 3.8.1.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
Productos afectados
corazawaf · corazaCVEs relacionadas — corazawaf coraza
En el mismo producto, de las más peligrosas a las menos.
CVE-2023-40586HIGHgo package github.com/corazawaf/coraza is vulnerable to denial of serviceEPSS 0.7%CVE-2026-41508MEDIUMOWASP Coraza WAF: Truncated multipart body bypasses MULTIPART_STRICT_ERROR (rule 200003) via silent io.ErrUnexpectedEOF handlingEPSS 0.5%CVE-2026-107826HIGHOWASP Coraza WAF: JSON body processor: argument-limit truncation reopens an unbounded-depth gjson.Valid stack overflow (process crash)EPSS 0.5%CVE-2026-107833MEDIUMOWASP Coraza WAF: Unbounded recursion in JSON response body processor causes CPU exhaustionEPSS 0.4%CVE-2026-41510HIGHOWASP Coraza WAF: Silent argument drop at ArgumentLimit allows bypass of ARGS-targeted rules via parameter floodingEPSS 0.4%CVE-2026-41504MEDIUMOWASP Coraza WAF: Native audit-log format allows CRLF injection and log forgery via request body and header fieldsEPSS 0.4%
Referencias
https://github.com/corazawaf/coraza/commit/0b940e197ad9983fb3aa36e84f1f81ff985461afhttps://github.com/corazawaf/coraza/commit/9f8521398d1ff023b958fad0b944cac265763866https://github.com/corazawaf/coraza/releases/tag/v3.8.1https://github.com/corazawaf/coraza/security/advisories/GHSA-g4qm-m288-5cp9