Timing Attack Vulnerability in Apache HTTP Server Affects Digest Authentication
CVE-2026-33006

Currently unrated

Key Information:

Vendor

Apache
Status
Apache Http Server
Vendor
CVE Published:
4 May 2026

What is CVE-2026-33006?

A vulnerability in Apache HTTP Server 2.4.66 allows remote attackers to bypass Digest authentication through a timing attack on the mod_auth_digest module. This flaw can lead to unauthorized access to sensitive resources, posing significant risks to server integrity and confidentiality. To mitigate these risks, users are strongly encouraged to upgrade to version 2.4.67, which patches this security issue.

Affected Version(s)

Apache HTTP Server 0 <= 2.4.66

References

https://httpd.apache.org/security/vulnerabilities_24.html
vendor-advisory

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nitescu Lucian
.