Vulnerabilities / GHSA-5423-jcjm-2gpv

critical

GHSA-5423-jcjm-2gpv

Traefik affected by Go HTTP Request Smuggling Vulnerability

Published Modified
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

GHSA9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Trivy's own label is CRITICAL. Rated critical by GHSA.

Description

### Summary net/http: request smuggling through invalid chunked data: The net/http package accepts data in the chunked transfer encoding containing an invalid chunk-size line terminated by a bare LF. When used in conjunction with a server or proxy which incorrectly interprets a bare LF in a chunk extension as part of the extension, this could permit request smuggling. [CVE-2025-22871] Vendor Affected Components: Go: 1.23.x < 1.23.8 More Details: [CVE-2025-22871](https://nvd.nist.gov/vuln/detail/CVE-2025-22871) ## Patches - https://github.com/traefik/traefik/releases/tag/v2.11.24 - https://github.com/traefik/traefik/releases/tag/v3.3.6 - https://github.com/traefik/traefik/releases/tag/v3.4.0-rc2

Affected packages and fixed versions

SourcePackageFixed in
go::GitHub Security Advisory Gogithub.com/traefik/traefik/v2, github.com/traefik/traefik/v32.11.24 and 1 more
Show all 2 entries from 1 source
SourcePackageFixed in
go::GitHub Security Advisory Gogithub.com/traefik/traefik/v22.11.24
go::GitHub Security Advisory Gogithub.com/traefik/traefik/v33.3.6, 3.4.0-rc2

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.