{"cve":"CVE-2021-39206","nvd":{"published":"2021-09-09T23:15:13.980","modified":"2026-06-17T04:03:18.673","status":"Modified","description":"Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, contains two authorization related vulnerabilities CVE-2021-32777 and CVE-2021-32779. This may lead to incorrect routing or authorization policy decisions. With specially crafted requests, incorrect authorization or routing decisions may be made by Pomerium. Pomerium v0.14.8 and v0.15.1 contain an upgraded envoy binary with these vulnerabilities patched. This issue can only be triggered when using path prefix based policy. Removing any such policies should provide mitigation.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","score":8.6},"cwes":["CWE-863"],"references":["https://github.com/envoyproxy/envoy/security/advisories/GHSA-6g4j-5vrw-2m8h","https://github.com/envoyproxy/envoy/security/advisories/GHSA-r222-74fw-jqr9","https://github.com/pomerium/pomerium/security/advisories/GHSA-cfc2-wjcm-c8fm","https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ","https://github.com/envoyproxy/envoy/security/advisories/GHSA-6g4j-5vrw-2m8h"],"products":["envoyproxy:envoy","pomerium:pomerium"],"source":"nvd","synced_at":"2026-10-19T21:23:41.316049955+00:00"},"epss":{"cve":"CVE-2021-39206","score":0.01457,"percentile":0.73502,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-cfc2-wjcm-c8fm","url":"https://osv.dev/vulnerability/GHSA-cfc2-wjcm-c8fm","summary":"Incorrect Authorization with specially crafted requests","modified":"2026-02-04T02:38:41.602246Z","packages":[{"ecosystem":"Go","name":"github.com/pomerium/pomerium","purl":"pkg:golang/github.com/pomerium/pomerium","ranges":[">=0.11.0 <0.14.8"],"fixed":["0.14.8"]},{"ecosystem":"Go","name":"github.com/pomerium/pomerium","purl":"pkg:golang/github.com/pomerium/pomerium","ranges":[">=0.15.0 <0.15.1"],"fixed":["0.15.1"]}]}],"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."]}