CVE-2025-32464

A flaw was found in the HAProxy. This issue can allow a buffer overflow via improper length checking when replacing multiple regex back-references in a string. Specifically, the replacement size is incorrectly validated against the output buffer instead of the temporary trash buffer used during substitution. If multiple matches are replaced with strings larger than the available buffer size, this can lead to a memory overwrite.

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.