CVE-2025-59775
httpd: Apache HTTP Server: NTLM Leakage on Windows via SSRF
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 5, 2025
Updated · November 2, 2026
Description
A server side request forgery flaw has been discovered in the Apache HTTP server. The Apache HTTP Server on Windows with AllowEncodedSlashes On and MergeSlashes Off allows to potentially leak NTLM hashes to a malicious server via SSRF and malicious requests or content.
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 · 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE-918 · Server-Side Request Forgery