CVE-2025-1734

A flaw was found in PHP. This vulnerability allows applications to accept invalid headers via malformed HTTP headers missing a colon (:), which may confuse applications into processing them as valid headers.

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 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.