CVE-2026-33006
Apache HTTP Server: mod_auth_digest timing attack
- Published
- May 4, 2026
- Updated
- May 4, 2026
- Assigning CNA
- apache
- Evidence observed
- Aug 25, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:NLow · next 30 days
- Percentile
- 45.0%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1Remote timing attack exploit for Apache mod_auth_digest (CVE-2026-33006) that bypasses Digest authentication via a 33-layer temporal cascade, recovering passwords through statistical timing analysis.
Responsible use
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