Security advisory

{
  "id": "d6c188fa846587cbfdc968bdb6eaf5d3e2666e929fb0e651ab97af1eb86add8b",
  "url": "https://osv.dev/vulnerability/CVE-2021-39162",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-39162",
    "summary": "Pomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, can abnormally terminate if an H/2 GOAWAY and SETTINGS frame are received in the same IO event. This can lead to a DoS in the presence of untrusted *upstream* servers. 0.15.1 contains an upgraded envoy binary with this vulnerability patched. If only trusted upstreams are configured, there is not substantial risk of this condition being triggered.",
    "evidence": "osv:CVE-2021-39162",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-39162",
      "aliases": [
        "BIT-envoy-2021-39162",
        "CVE-2021-39162",
        "GHSA-gjcg-vrxg-xmgv",
        "GO-2022-0933"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/envoyproxy/envoy",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "bef18019d8fc33a4ed6aca3679aff2100241ac5e"
                },
                {
                  "introduced": "68fe53a889416fd8570506232052b06f5a531541"
                },
                {
                  "last_affected": "68fe53a889416fd8570506232052b06f5a531541"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "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",
            "v1.18.3",
            "v1.18.2",
            "v1.18.1",
            "v1.18.0",
            "v1.17.0",
            "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-2021-39162.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/pomerium/pomerium",
              "type": "GIT",
              "events": [
                {
                  "introduced": "7692b2ac4966f2606e1cea376dd33a14c984d9c9"
                },
                {
                  "last_affected": "7692b2ac4966f2606e1cea376dd33a14c984d9c9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "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"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-39162.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:53.365901469Z",
      "provider": "osv",
      "references": [
        "https://github.com/envoyproxy/envoy/security/advisories/GHSA-j374-mjrw-vvp8",
        "https://github.com/pomerium/pomerium/security/advisories/GHSA-gjcg-vrxg-xmgv",
        "https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-39162",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386373,
  "published_at": "2021-09-09T22:15:09.05+00:00"
}