Security advisory

{
  "id": "374f07c5eb76747fd85354f5b000dabe3e1bdf5968903fcc638cdd435f3e24ed",
  "url": "https://osv.dev/vulnerability/CVE-2021-34337",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-34337",
    "summary": "An issue was discovered in Mailman Core before 3.3.5. An attacker with access to the REST API could use timing attacks to determine the value of the configured REST API password and then make arbitrary REST API calls. The REST API is bound to localhost by default, limiting the ability for attackers to exploit this, but can optionally be made to listen on other interfaces.",
    "evidence": "osv:CVE-2021-34337",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-34337",
      "aliases": [
        "CVE-2021-34337",
        "GHSA-2jg5-xgvv-4wq7",
        "PYSEC-2023-22"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/mailman/mailman",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "f15926e64780848769a4887b2513faff8c00c99e"
                },
                {
                  "fixed": "e4a39488c4510fcad8851217f10e7337a196bb51"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gnu:mailman:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.3.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e4a39488c4510fcad8851217f10e7337a196bb51"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.3.5rc1",
            "3.3.5b1",
            "3.3.4",
            "3.3.3",
            "3.3.2",
            "3.3.2rc2",
            "3.3.1",
            "3.3.1rc1",
            "3.3.0",
            "3.2.2",
            "3.2.1",
            "3.2.1rc1",
            "3.2.0",
            "3.1.0",
            "3.1.0rc1",
            "3.1.0b5",
            "3.1.0b4",
            "3.1.0.b4",
            "3.1.0b3",
            "3.1.0b2",
            "3.1.0b1",
            "3.0.0",
            "3.0",
            "3.0rc1",
            "3.0b5-A",
            "3.0b5",
            "3.0b4",
            "3.0b3",
            "3.0b2",
            "3.0b1",
            "3.0a8",
            "3.0a7",
            "3.0.0a7",
            "3.0a6",
            "3.0a5",
            "3.0a4",
            "3.0a3",
            "3.0a2",
            "3.0a1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-34337.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:47.800690945Z",
      "provider": "osv",
      "references": [
        "https://gitlab.com/mailman/mailman/-/tags",
        "https://gitlab.com/mailman/mailman/-/issues/911",
        "https://gitlab.com/mailman/mailman/-/commit/e4a39488c4510fcad8851217f10e7337a196bb51"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-34337",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386144,
  "published_at": "2023-04-15T20:16:00.623+00:00"
}