Apache HTTP Server: mod_auth_digest timing attack (Apache Software Foundation Apache HTTP Server)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.56 % · percentile 46 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- apache
- NVD status
- Analyzed
Description
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.
Weaknesses (CWE)
- CWE-208 — Observable Timing Discrepancy
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N | CISA-ADP |
| CVSS 3.1 | MEDIUM 4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-26961
- GCVE · GCVE-0-2026-33006
CERT-FR advisories
- CERTFR-2026-AVI-0608 — Multiples vulnérabilités dans Microsoft Azure Linux · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0530 — Multiples vulnérabilités dans Apache HTTP Server · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*< 2.4.67
Affected products
| Product | Versions |
|---|---|
| Apache Software Foundation · Apache HTTP Server | affected 0 ≤ 2.4.66 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |