All vulnerabilities

Servers and applications

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.

Severity
High 7.3
Published
1 Oct 2026
Last changed
5 Oct 2026
Added to UpHeron
17 Oct 2026
Fixed in
2.4.69
Sources
NVD

Affected software

SoftwareAffected versions
Apache HTTP ServerServers and applications · cpe:a:apache:http_server
  • From 2.4.0 before 2.4.69

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-73637
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-73637