CVE-2023-45539: Haproxy

High severity, CVSS 8.2. EPSS: 1.5% chance of exploitation in the next 30 days.

HAProxy before 2.8.2 accepts # as part of the URI component, which might allow remote attackers to obtain sensitive information or have unspecified other impact upon misinterpretation of a path_end rule, such as routing index.html#.png to a static server.

Affected products

• Haproxy Haproxy: before 2.8.2 (fixed in 2.8.2)

Published 2023-11-28. Last modified 2026-06-17.