Security advisory

{
  "id": "56a36ceb5a1b0d09fc8fc99e40adeb0f6af2e3b641e38d1fd4f75890c73b4ceb",
  "url": "https://osv.dev/vulnerability/CVE-2021-33054",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-33054",
    "summary": "SOGo 2.x before 2.4.1 and 3.x through 5.x before 5.1.1 does not validate the signatures of any SAML assertions it receives. Any actor with network access to the deployment could impersonate users when SAML is the authentication method. (Only versions after 2.0.5a are affected.)",
    "evidence": "osv:CVE-2021-33054",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-33054",
      "aliases": [
        "CVE-2021-33054"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/Alinto/sogo",
              "type": "GIT",
              "events": [
                {
                  "introduced": "bf398889bf538cad2589ddd4f3a0c39b38f1e9e2"
                },
                {
                  "fixed": "24687abdd496d9a9e416d4efa082bb325dad2870"
                },
                {
                  "introduced": "fe0221f6300bc92f0156f9dde4e58c1c8d3610e7"
                },
                {
                  "fixed": "a42749facdf98fe101dc962b855399bf4683ecb2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:inverse:sogo:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.0.6"
                      },
                      {
                        "fixed": "2.4.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:inverse:sogo:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.0.0"
                      },
                      {
                        "fixed": "5.1.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "SOGo-5.1.0",
            "SOGo-5.0.1",
            "SOGo-5.0.0",
            "SOGo-4.3.2",
            "SOGo-4.3.1",
            "SOGo-4.3.0",
            "SOGo-4.2.0",
            "SOGo-4.1.1",
            "SOGo-4.1.0",
            "SOGo-4.0.8",
            "SOGo-4.0.7",
            "SOGo-4.0.6",
            "SOGo-4.0.5",
            "SOGo-4.0.4",
            "SOGo-4.0.3",
            "SOGo-4.0.2",
            "SOGo-4.0.1",
            "SOGo-4.0.0",
            "SOGo-3.2.10",
            "SOGo-3.2.9",
            "SOGo-3.2.8",
            "SOGo-3.2.7",
            "SOGo-3.2.6a",
            "SOGo-3.2.5",
            "SOGo-3.2.4",
            "SOGo-3.2.3",
            "SOGo-3.2.2",
            "SOGo-3.2.1",
            "SOGo-3.2.0",
            "SOGo-3.1.5",
            "SOGo-3.1.4",
            "SOGo-3.1.3",
            "SOGo-3.1.2",
            "SOGo-3.1.0",
            "SOGo-3.0.2",
            "SOGo-3.0.1",
            "SOGo-3.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-33054.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:46.738803396Z",
      "provider": "osv",
      "references": [
        "https://www.sogo.nu/news.html",
        "https://blogs.akamai.com/2021/06/sogo-and-packetfence-impacted-by-saml-implementation-vulnerabilities.html",
        "https://github.com/inverse-inc/sogo/blob/master/CHANGELOG.md",
        "https://lists.debian.org/debian-lts-announce/2021/07/msg00007.html",
        "https://www.debian.org/security/2021/dsa-5029"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  },
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  },
                  {
                    "introduced": "11.0"
                  },
                  {
                    "last_affected": "11.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-33054",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384614,
  "published_at": "2021-06-04T15:15:07.647+00:00"
}