Description
Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.8, there is a potential vulnerability in Traefik managing STARTTLS requests. An unauthenticated client can bypass Traefik entrypoint respondingTimeouts.readTimeout by sending the 8-byte Postgres SSLRequest (STARTTLS) prelude and then stalling, causing connections to remain open indefinitely, leading to a denial of service. This vulnerability is fixed in 3.6.8.
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| github.com/traefik/traefik | — | — |
| github.com/traefik/traefik/v2 | — | — |
| github.com/traefik/traefik/v3 | — | — |
| traefik | — | 3.6.8 |
References
Similar Threats
- Medium CVE-2025-66490
- Medium CVE-2025-66491
- Critical CVE-2025-54386
- Critical CVE-2025-47952
- Critical CVE-2025-32431
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