A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Jun 17, 2026 · NIST NVD

   Updated

   A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker. Users are recommended to upgrade to version 2.4.67, which fixes this issue.

2. Oct 15, 2026 · Apache Software Foundation

   Detected

   Named on the public Apache Software Foundation page.

Affected

• cpe apache/http serverversion unspecified

Sources

• Apache Software FoundationVendor advisoryCVE-2026-33006

  Named on the public Apache Software Foundation page.

  httpd.apache.org
• CVE.orgVulnerability recordCVE-2026-33006

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-33006

  A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker. Users are recommended to upgrade to version 2.4.67, which fixes this issue.

  nvd.nist.gov

References

• Mailing List · openwall.com
• Vendor Advisory · httpd.apache.org