{"cve":"CVE-2020-15129","nvd":{"published":"2020-07-30T16:15:11.537","modified":"2026-06-17T02:56:06.487","status":"Modified","description":"In Traefik before versions 1.7.26, 2.2.8, and 2.3.0-rc3, there exists a potential open redirect vulnerability in Traefik's handling of the \"X-Forwarded-Prefix\" header. The Traefik API dashboard component doesn't validate that the value of the header \"X-Forwarded-Prefix\" is a site relative path and will redirect to any header provided URI. Successful exploitation of an open redirect can be used to entice victims to disclose sensitive information. Active Exploitation of this issue is unlikely as it would require active header injection, however the Traefik team addressed this issue nonetheless to prevent abuse in e.g. cache poisoning scenarios.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","score":4.7},"cwes":["CWE-601"],"references":["https://github.com/containous/traefik/commit/e63db782c11c7b8bfce30be4c902e7ef8f9f33d2","https://github.com/containous/traefik/pull/7109","https://github.com/containous/traefik/releases/tag/v1.7.26","https://github.com/containous/traefik/releases/tag/v2.2.8","https://github.com/containous/traefik/releases/tag/v2.3.0-rc3"],"products":["traefik:traefik"],"source":"nvd","synced_at":"2026-10-19T21:06:22.076270124+00:00"},"epss":{"cve":"CVE-2020-15129","score":0.08011,"percentile":0.94768,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-6qq8-5wq3-86rp","url":"https://osv.dev/vulnerability/GHSA-6qq8-5wq3-86rp","summary":"Traefik vulnerable to Open Redirect via handling of X-Forwarded-Prefix header","modified":"2026-07-08T06:28:33.650747502Z","packages":[{"ecosystem":"Go","name":"github.com/traefik/traefik","purl":"pkg:golang/github.com/traefik/traefik","ranges":[">=1.5.0-rc5 <1.7.26"],"fixed":["1.7.26"]},{"ecosystem":"Go","name":"github.com/traefik/traefik/v2","purl":"pkg:golang/github.com/traefik/traefik/v2","ranges":["<2.3.0-rc6"],"fixed":["2.3.0-rc6"]},{"ecosystem":"Go","name":"github.com/containous/traefik","purl":"pkg:golang/github.com/containous/traefik","ranges":[">=1.5.0-rc5 <1.7.26"],"fixed":["1.7.26"]},{"ecosystem":"Go","name":"github.com/containous/traefik/v2","purl":"pkg:golang/github.com/containous/traefik/v2","ranges":["<2.2.8"],"fixed":["2.2.8"]},{"ecosystem":"Go","name":"github.com/traefik/traefik/v2","purl":"pkg:golang/github.com/traefik/traefik/v2","ranges":[">=2.3.0-rc1 <2.3.0-rc6"],"fixed":["2.3.0-rc6"]},{"ecosystem":"Go","name":"github.com/containous/traefik/v2","purl":"pkg:golang/github.com/containous/traefik/v2","ranges":[">=2.3.0-rc1 <2.3.0-rc3"],"fixed":["2.3.0-rc3"]},{"ecosystem":"Go","name":"github.com/traefik/traefik/api","purl":"pkg:golang/github.com/traefik/traefik/api","ranges":[">=1.5.0-rc5 <1.7.26"],"fixed":["1.7.26"]},{"ecosystem":"Go","name":"github.com/traefik/traefik/v2/pkg/api","purl":"pkg:golang/github.com/traefik/traefik/v2/pkg/api","ranges":["<2.3.0-rc6"],"fixed":["2.3.0-rc6"]},{"ecosystem":"Go","name":"github.com/traefik/traefik/v2/pkg/api","purl":"pkg:golang/github.com/traefik/traefik/v2/pkg/api","ranges":[">=2.3.0-rc1 <2.3.0-rc6"],"fixed":["2.3.0-rc6"]},{"ecosystem":"Go","name":"github.com/containous/traefik/api","purl":"pkg:golang/github.com/containous/traefik/api","ranges":[">=1.5.0-rc5 <1.7.26"],"fixed":["1.7.26"]},{"ecosystem":"Go","name":"github.com/containous/traefik/v2/pkg/api","purl":"pkg:golang/github.com/containous/traefik/v2/pkg/api","ranges":["<2.2.8"],"fixed":["2.2.8"]},{"ecosystem":"Go","name":"github.com/containous/traefik/v2/pkg/api","purl":"pkg:golang/github.com/containous/traefik/v2/pkg/api","ranges":[">=2.3.0-rc1 <2.3.0-rc3"],"fixed":["2.3.0-rc3"]}]}],"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."]}