CVE-2026-25949

HIGH

7.5

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/12/2026

Last Modified2/20/2026

Sourcenvd

Honeypot Sightings0

Affected Products

traefik:traefik

Weaknesses (CWE)

CWE-400

References

https://github.com/traefik/traefik/commit/31e566e9f1d7888ccb6fbc18bfed427203c35678(security-advisories@github.com)

https://github.com/traefik/traefik/releases/tag/v3.6.8(security-advisories@github.com)

https://github.com/traefik/traefik/security/advisories/GHSA-89p3-4642-cr2w(security-advisories@github.com)

IOC Correlations

No correlations recorded

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