CVE-2026-41508
MEDIUM
5,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: none
Integrity: low
Availability: none
Description
AI Translation Available
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.4.0 until 3.8.0, the multipart processor in internal/bodyprocessors/multipart.go treats io.ErrUnexpectedEOF as nonfatal without setting MULTIPART_STRICT_ERROR. A remote attacker can submit a truncated multipart body that produces io.ErrUnexpectedEOF, causing parsing to stop without raising the strict-error signal used by the recommended defensive rule. Rules 200002 and 200003 do not fire, allowing multipart parser-disagreement payloads to reach a backend that interprets the truncated body differently. This issue is fixed in version 3.8.0.
693
Protection Mechanism Failure
DraftCommon Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Bypass Protection Mechanism
Applicable Platforms
Technologies:
Not Technology-Specific, ICS/OT
755
Improper Handling of Exceptional Conditions
IncompleteCommon Consequences
Security Scopes Affected:
Other
Potential Impacts:
Other
Applicable Platforms
All platforms may be affected
https://github.com/corazawaf/coraza/commit/f94c81bec209f658120c418448d0590a549b…
https://github.com/corazawaf/coraza/releases/tag/v3.8.0
https://github.com/corazawaf/coraza/security/advisories/GHSA-r3rm-qphw-hh76