{"cve":"CVE-2026-25949","nvd":{"published":"2026-02-12T20:16:11.227","modified":"2026-07-15T02:18:57.547","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-400","CWE-770"],"references":["https://github.com/traefik/traefik/commit/31e566e9f1d7888ccb6fbc18bfed427203c35678","https://github.com/traefik/traefik/releases/tag/v3.6.8","https://github.com/traefik/traefik/security/advisories/GHSA-89p3-4642-cr2w","https://access.redhat.com/errata/RHSA-2026:6192","https://access.redhat.com/security/cve/CVE-2026-25949"],"products":["traefik:traefik"],"source":"nvd","synced_at":"2026-10-19T22:23:35.260773158+00:00"},"epss":{"cve":"CVE-2026-25949","score":0.00782,"percentile":0.56016,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-89p3-4642-cr2w","url":"https://osv.dev/vulnerability/GHSA-89p3-4642-cr2w","summary":"Traefik: TCP readTimeout bypass via STARTTLS on Postgres","modified":"2026-09-10T03:50:34.361678666Z","packages":[{"ecosystem":"Go","name":"github.com/traefik/traefik/v3","purl":"pkg:golang/github.com/traefik/traefik/v3","ranges":["<3.6.8"],"fixed":["3.6.8"]}]},{"id":"GO-2026-4484","url":"https://osv.dev/vulnerability/GO-2026-4484","summary":"Traefik: TCP readTimeout bypass via STARTTLS on Postgres in github.com/traefik/traefik","modified":"2026-02-25T14:44:06.246971Z","packages":[{"ecosystem":"Go","name":"github.com/traefik/traefik","purl":"pkg:golang/github.com/traefik/traefik","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/traefik/traefik/v2","purl":"pkg:golang/github.com/traefik/traefik/v2","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/traefik/traefik/v3","purl":"pkg:golang/github.com/traefik/traefik/v3","ranges":["<3.6.8"],"fixed":["3.6.8"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}