GHSA-rhg6-2vjh-j5qc
Suggest an improvement- Source
- https://github.com/advisories/GHSA-rhg6-2vjh-j5qc
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-rhg6-2vjh-j5qc/GHSA-rhg6-2vjh-j5qc.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-rhg6-2vjh-j5qc
- Withdrawn
- 2026-08-06T16:50:45Z
- Published
- 2026-07-22T12:32:18Z
- Modified
- 2026-08-06T17:00:56Z
- Severity
-
- 7.8 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
- Summary
- Duplicate Advisory: Traefik: Authentication Bypass via Path Traversal in ReplacePathRegex Middleware
- Details
-
Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-cxjq-mrr5-89rv. This link is maintained to preserve external references.
Original Description
Traefik versions <= v2.11.51, >= v3.6.0 <= v3.6.22, and >= v3.7.0 <= v3.7.6 contain an authentication bypass via path traversal in the ReplacePathRegex middleware. When ReplacePathRegex is configured with a regex that captures user-controlled path segments without a mandatory path separator (e.g. regex "^/api(.*)", replacement "/$1"), the middleware forwards the replaced path to the backend without validating that it matches its normalized form. An unauthenticated remote attacker can send a crafted request (e.g. GET /api../admin) that produces an un-normalized path such as /../admin, which a backend that normalizes paths resolves to a protected route, bypassing authentication middleware. Fixed in v2.11.52, v3.6.23, and v3.7.7.
- Database specific
{ "cwe_ids": [ "CWE-22" ], "github_reviewed": true, "github_reviewed_at": "2026-08-06T16:50:45Z", "nvd_published_at": "2026-07-22T12:18:20Z", "severity": "HIGH" }- References
Affected packages
Go / github.com/traefik/traefik/v2
Package
- Name
- github.com/traefik/traefik/v2
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/traefik/traefik/v2