CVE-2026-73636

Authentication bypass by capture-replay in mod_auth_digest in Apache Software Foundation Apache HTTP Server 2.4.x on all platforms allows a man-in-the-middle (MITM) attacker to replay captured digest authentication credentials via crafted requests that trigger garbage collection of the client's shared memory entry when AuthDigestNonceLifetime is set to 0. Users are recommended to upgrade to version 2.4.69, which fixes this issue.

Score

CVSS 3.1 8.1 High

Status

Analyzed - security@apache.org

Published

2026-10-01

Last modified

2026-10-05

Weaknesses

CWE-294

Affected products

• Http Server (Apache)
• Apache Http Server (Apache Software Foundation)

References

• https://httpd.apache.org/security/vulnerabilities_24.html
• http://www.openwall.com/lists/oss-security/2026/10/01/27