CVE-2026-25949

HIGH SEVERITY

CVSS Score & Metrics

Base Score

7.5 / 10

Vector String

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

Vulnerability 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.

Vulnerability Details

Published Date

February 12, 2026

Last Modified

February 13, 2026

CWE ID

CWE-400

Source

GitHub

Vendor

Product

github.com/traefik/traefik/v3

External References

https://github.com/traefik/traefik/security/advisories/GHSA-89p3-4642-cr2w
https://github.com/traefik/traefik/releases/tag/v3.6.8
https://github.com/advisories/GHSA-89p3-4642-cr2w

CVE-2026-25949

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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