CVE-2026-41510: fallo de gravedad alta en corazawaf coraza
OWASP Coraza WAF: Silent argument drop at ArgumentLimit allows bypass of ARGS-targeted rules via parameter flooding
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.2epss 0.4%
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.1, Coraza silently drops arguments after SecArgumentsLimit in internal/corazawaf/transaction.go, while internal/bodyprocessors/urlencoded.go writes ARGS_POST without enforcing the cap. The flaw is triggered when an unauthenticated attacker sends more arguments than SecArgumentsLimit or supplies bodies that expand beyond the configured argument and flattening budgets. An unauthenticated attacker can flood requests with arguments so excess values are silently omitted from ARGS, ARGS_GET, ARGS_NAMES, ARGS_GET_NAMES, ARGS_POST, or ARGS_PATH before security rules inspect them; affected urlencoded and JSON processing can also consume excessive memory. The omission can bypass WAF rules protecting the downstream application, and unbounded or amplified argument processing can cause memory consumption and service degradation. This issue is fixed in version 3.8.1.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
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-2026-41504MEDIUMOWASP Coraza WAF: Native audit-log format allows CRLF injection and log forgery via request body and header fieldsEPSS 0.4%CVE-2026-104774MEDIUMOWASP Coraza WAF: jsDecode Off-by-One in Octal Escape Handling Enables WAF BypassEPSS 0.3%
Referencias
https://github.com/corazawaf/coraza/commit/146c2f79f39ad16f13787e7d67ad400f8d8cb9a3https://github.com/corazawaf/coraza/commit/b98359bb7e7606c95100dcc7ad490d2d624e6deahttps://github.com/corazawaf/coraza/releases/tag/v3.8.1https://github.com/corazawaf/coraza/security/advisories/GHSA-6r3q-mjv7-xr8m