CVE-2026-73637

Use after free in mod_auth_digest in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an unauthenticated remote client to cause authentication state corruption via concurrent Digest authentication requests when AuthDigestNcCheck is enabled or AuthDigestNonceLifetime is set to 0. Users are recommended to upgrade to version 2.4.69, which fixes this issue.

Score

CVSS 3.1 7.3 High

Status

Analyzed - security@apache.org

Published

2026-10-01

Last modified

2026-10-05

Weaknesses

CWE-416

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/2026/10/01/28