CVEvulnerability

CVE-2023-38199

9.8 CRITICAL Published 2023-07-13 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-07-13
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-843

Description

coreruleset (aka OWASP ModSecurity Core Rule Set) through 3.3.4 does not detect multiple Content-Type request headers on some platforms. This might allow attackers to bypass a WAF with a crafted payload, aka "Content-Type confusion" between the WAF and the backend application. This occurs when the web application relies on only the last Content-Type header. Other platforms may reject the additional Content-Type header or merge conflicting headers, leading to detection as a malformed header.

Affected configurations

• owasp coreruleset (<= 3.3.4)

Related

Weakness · CWE (1)

  • CWE-843 Access of Resource Using Incompatible Type weakness

References