CVE-2025-54571
mod_security: ModSecurity Content-Type Override Vulnerability
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 6, 2025
Updated · June 30, 2026
Description
A flaw was found in mod_security. The engine may allow attackers to manipulate the HTTP response’s Content-Type header, enabling them to influence downstream processes or applications. This manipulation can be achieved remotely without authentication. Consequently, an attacker can alter the expected content type of responses, leading to unpredictable behavior or vulnerabilities in dependent systems.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-252 · Unchecked Return Value