[ CVE-2026-41504 · Published 12 Oct 2026 ]
Coraza: Native audit-log format allows CRLF injection and log forgery via request body and header fields
[ Why it matters ]Priority signals
- Public proof-of-concept exploit exists (CISA SSVC)
[ Description ]Official description
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.0, the Native audit-log formatter in internal/auditlog/formats.go writes attacker-influenced request and response fields without neutralizing carriage returns or line feeds. When SecAuditLogFormat Native is enabled, injected line breaks can create forged lines inside a transaction record. An attacker who controls request or response body, header, error-message, or matched-rule data can inject carriage returns and line feeds that appear as forged audit lines within a transaction record. The forged content can mislead operators and line-oriented SIEM processing, although the unpredictable transaction boundary prevents straightforward impersonation of a separate complete session. This issue is fixed in version 3.8.0.
[ Fixes ]Fixes and patches
- github.com/corazawaf/coraza/v3 3.8.0Fixed version · GitHub Advisories · go package github.com/corazawaf/coraza/v3: upgrade to 3.8.0 or later (affected >= 3.0.0, <= 3.7.0)
[ Packages ]Affected open-source packages
- github.com/corazawaf/coraza/v3 goAffected >= 3.0.0, <= 3.7.0 · fixed in 3.8.0 · GHSA-prpw-wwv7-xjjr