OWASP Coraza WAF: Native audit-log format allows CRLF injection and log forgery via request body and header fields

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-41504
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-12 21:17:17 UTC
Updated2026-10-16 20:04:29 UTC
DescriptionOWASP 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.

Risk And Classification

Primary CVSS: v3.1 5.8 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

EPSS: 0.003920000 probability, percentile 0.317650000 (date 2026-10-16)

Problem Types: CWE-93 | CWE-117 | CWE-93 CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection') | CWE-117 CWE-117: Improper Output Neutralization for Logs

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
3.1CNADECLARED5.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Corazawaf Coraza affected >= 3.0.0, < 3.8.0 Not specified

References

ReferenceSourceLinkTags
github.com/corazawaf/coraza/security/advisories/GHSA-prpw-wwv7-xjjr 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/corazawaf/coraza/releases/tag/v3.8.0 [email protected] github.com
github.com/corazawaf/coraza/commit/a3079325547c7c1e08522aed4d6468f25d080e25 [email protected] github.com
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