Answer in brief
CVE-2026-41504 records a Medium severity (CVSS 5.8) vulnerability in OWASP Coraza WAF: Native audit-log format allows CRLF injection and log forgery via request body and header fields. The current sources do not mark it as known exploited. The current feed maps corazawaf/coraza (generic), github.com/corazawaf/coraza/v3 (go), github.com/corazawaf/coraza/v3 (go). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps corazawaf/coraza (generic), github.com/corazawaf/coraza/v3 (go), github.com/corazawaf/coraza/v3 (go). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| corazawaf/corazageneric | >=3.0.0 <3.8.0 | 3.8.0 |
| github.com/corazawaf/coraza/v3go | >=3.0.0 <3.8.0 | 3.8.0 |
| github.com/corazawaf/coraza/v3go | >=3.0.0,<=3.7.0 | 3.8.0 |
Published upstream
Oct 12, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 12, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.