CVE-2026-119574

5.9 MEDIUMpublic exploit available

Published 2026-10-30 · Updated 2026-10-30

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD description

Traefik from 3.2.0 before 3.7.15 contains a data race in the experimental FastProxy that allows unauthenticated attackers to crash the process by abusing HTTP/1 protocol upgrades. Attackers can repeatedly open and abort upgraded connections such as WebSocket, corrupting the unsynchronized shared bufio.Reader and triggering an unrecovered panic that terminates Traefik.

CVSS vector

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

Weaknesses

CWE-567

Public exploit & PoC references

https://github.com/traefik/traefik/security/advisories/GHSA-ww7c-q3mv-xx22

All references

https://github.com/traefik/traefik/security/advisories/GHSA-ww7c-q3mv-xx22
https://www.vulncheck.com/advisories/traefik-3.2.0-before-3.7.15-fastproxy-data-race-denial-of-service

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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