Severity: low Affected versions:
- Apache HTTP Server 2.4.0 through 2.4.68 Description: 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. Credit: Hyojae Lee (finder) References: https://httpd.apache.org/security/vulnerabilities_24.html https://httpd.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-73636 Timeline: 2026-06-08: Report received 2026-10-01: fixed in 2.4.x by r1937721 2026-10-01: 2.4.69 released
