CVE-2026-32595
Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 comtain BasicAuth middleware that allows username enumeration via a timing attack. When a submitted username exists, the middleware performs a bcrypt password comparison taking ~166ms. When the username does not exist, the response returns immediately in ~0.6ms. This ~298x timing difference is observable over the network and allows an unauthenticated attacker to reliably distinguish valid from invalid usernames. This issue is patched in versions 2.11.41, 3.6.11 and 3.7.0-ea.2.
- Affected products
- Traefik
- Traefik
- < 2.11.41, 3.6.11, 3.7.0
- Fix
- Available
- CVSS 4.0
- 6.3 MEDIUM
- CVSS 3.1
- 3.7 LOW
- EPSS
- 0.4% (31th percentile)
- Weakness
- CWE-208
- NVD status
- Analyzed
- Published
- 2026-03-20
No indexed exploits for CVE-2026-32595 yet
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