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Security advisory

Type: advisorySources: OSVCVE: CVE-2021-39206

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.

Products
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Affected versions
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Fixed versions
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CVEs
CVE-2021-39206
Confirmed fixed CVEs
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Updated in this feed
31 Oct 2026, 11:53 UTC · Revision 1

Source evidence

CVE-2021-39206

core-osv · Original source

Published 9 Sept 2021, 23:15 UTC

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.

osv:CVE-2021-39206
Complete source record
{
  "id": "341efc12d83d91956832939fa76248f29134f02c2a0d0bbcd7cc9a84481b1278",
  "url": "https://osv.dev/vulnerability/CVE-2021-39206",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-39206",
    "summary": "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.",
    "evidence": "osv:CVE-2021-39206",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-39206",
      "aliases": [
        "BIT-envoy-2021-39206",
        "CVE-2021-39206",
        "GHSA-cfc2-wjcm-c8fm"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/envoyproxy/envoy",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "72ec3eed50b4154cb6d2251667b4c1c1ddfaa266"
                },
                {
                  "introduced": "5c801b25cae04f06bf48248c90e87d623d7a6283"
                },
                {
                  "fixed": "0de60452be1fa329c16076916b6bfe1f672aeed4"
                },
                {
                  "introduced": "345ffe37148b7a35b6e8e04db0300463689e3ff1"
                },
                {
                  "fixed": "bef18019d8fc33a4ed6aca3679aff2100241ac5e"
                },
                {
                  "introduced": "68fe53a889416fd8570506232052b06f5a531541"
                },
                {
                  "last_affected": "68fe53a889416fd8570506232052b06f5a531541"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.16.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.17.0"
                      },
                      {
                        "fixed": "1.17.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.18.0"
                      },
                      {
                        "fixed": "1.18.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:envoyproxy:envoy:1.19.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.19.0"
                      },
                      {
                        "last_affected": "1.19.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.19.0",
            "v1.19.0",
            "v1.16.4",
            "v1.17.3",
            "v1.18.3",
            "v1.17.2",
            "v1.18.2",
            "v1.16.3",
            "v1.18.1",
            "v1.18.0",
            "v1.17.1",
            "v1.17.0",
            "v1.16.2",
            "v1.16.1",
            "v1.16.0",
            "v1.15.0",
            "v1.14.0",
            "v1.13.0",
            "v1.12.0",
            "v1.11.0",
            "v1.10.0",
            "v1.9.0",
            "v1.8.0",
            "v1.7.0",
            "v1.6.0",
            "v1.5.0",
            "v1.4.0",
            "v1.3.0",
            "v1.2.0",
            "v1.1.0",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-39206.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/pomerium/pomerium",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4d36a5a8506d953907d50424e8a7377fbc1372fa"
                },
                {
                  "fixed": "d3a90a03b6b3bc0f5e821d7b544464cb28320d2f"
                },
                {
                  "introduced": "7692b2ac4966f2606e1cea376dd33a14c984d9c9"
                },
                {
                  "last_affected": "7692b2ac4966f2606e1cea376dd33a14c984d9c9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:pomerium:pomerium:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.11.0"
                      },
                      {
                        "fixed": "0.14.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:pomerium:pomerium:0.15.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.15.0"
                      },
                      {
                        "last_affected": "0.15.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.15.0",
            "v0.15.0",
            "v0.14.7",
            "v0.14.6",
            "v0.14.5",
            "v0.14.4",
            "v0.14.3",
            "v0.14.2",
            "v0.14.1",
            "v0.14.0",
            "v0.14.0-rc2",
            "v0.12.0",
            "v0.11.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-39206.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:53.257818976Z",
      "provider": "osv",
      "references": [
        "https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ",
        "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"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-39206",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386368,
  "published_at": "2021-09-09T23:15:13.98+00:00"
}