Security advisory

{
  "id": "183c8b1eacdf190dc24ec997a2f0c47eaadfeac482acbb7b36f32d050a0acdc3",
  "url": "https://osv.dev/vulnerability/CVE-2024-21543",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2024-21543",
    "summary": "Versions of the package djoser before 2.3.0 are vulnerable to Authentication Bypass when the authenticate() function fails. This is because the system falls back to querying the database directly, granting access to users with valid credentials, and eventually bypassing custom authentication checks such as two-factor authentication, LDAP validations, or requirements from configured AUTHENTICATION_BACKENDS.",
    "evidence": "osv:CVE-2024-21543",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-21543",
      "aliases": [
        "CVE-2024-21543",
        "GHSA-v49p-m6gh-747c",
        "PYSEC-2024-158"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/sunscrapers/djoser",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "db80fc721290b3acf5cfccaffc6dbd7b2d009947"
                },
                {
                  "fixed": "d33c3993c0c735f23cbedc60fa59fce69354f19d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.3.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "db80fc721290b3acf5cfccaffc6dbd7b2d009947"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "2.3.0"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d33c3993c0c735f23cbedc60fa59fce69354f19d"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.2.2",
            "2.2.1",
            "2.1.0",
            "2.0.5",
            "2.0.3",
            "2.0.2",
            "2.0.0",
            "1.7.0",
            "1.6.0",
            "1.5.1",
            "1.4.0",
            "1.3.2",
            "1.2.1",
            "1.5.0",
            "1.3.1",
            "1.3.0",
            "1.1.5",
            "1.1.4",
            "1.1.3",
            "1.1.2",
            "1.1.1",
            "1.1.0",
            "1.0.1",
            "1.0.0",
            "0.7.0",
            "0.6.0",
            "0.5.4",
            "0.5.3",
            "0.5.2",
            "0.5.1",
            "0.5.0",
            "0.4.3",
            "0.4.1",
            "0.4.0",
            "0.3.1",
            "0.3.0",
            "0.2.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-21543.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.130967354Z",
      "provider": "osv",
      "references": [
        "https://github.com/sunscrapers/djoser/releases/tag/2.3.0",
        "https://lists.debian.org/debian-lts-announce/2025/02/msg00023.html",
        "https://security.snyk.io/vuln/SNYK-PYTHON-DJOSER-8366540",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21543.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-21543",
        "https://github.com/sunscrapers/djoser/issues/795",
        "https://github.com/sunscrapers/djoser/commit/d33c3993c0c735f23cbedc60fa59fce69354f19d",
        "https://github.com/sunscrapers/djoser/pull/819"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-287"
        ],
        "cna_assigner": "snyk",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21543.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-21543",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 505162,
  "published_at": "2024-12-13T05:00:16.747+00:00"
}