Session fixation in fastify-passport

{
  "id": "c30c8628d309c278f64529d764acf37acabf3f661fa8451ba724d6bcfd7e947b",
  "url": "https://osv.dev/vulnerability/CVE-2023-29019",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Session fixation in fastify-passport",
    "summary": "@fastify/passport is a port of passport authentication library for the Fastify ecosystem. Applications using `@fastify/passport` in affected versions for user authentication, in combination with `@fastify/session` as the underlying session management mechanism, are vulnerable to session fixation attacks from network and same-site attackers. fastify applications rely on the `@fastify/passport` library for user authentication. The login and user validation are performed by the `authenticate` function. When executing this function, the `sessionId` is preserved between the pre-login and the authenticated session. Network and same-site attackers can hijack the victim's session by tossing a valid `sessionId` cookie in the victim's browser and waiting for the victim to log in on the website. As a solution, newer versions of `@fastify/passport` regenerate `sessionId` upon login, preventing the attacker-controlled pre-session cookie from being upgraded to an authenticated session. Users are advised to upgrade. There are no known workarounds for this vulnerability.",
    "evidence": "osv:CVE-2023-29019",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-29019",
      "aliases": [
        "CVE-2023-29019",
        "GHSA-4m3m-ppvx-xgw9"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/fastify/fastify-passport",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "628664a0c86f489def6fd2303990ba059cca5417"
                },
                {
                  "introduced": "673e5abc3f342170e65669c023cebb1f5f4b3784"
                },
                {
                  "fixed": "30843bc2f201879950311ad422bc57747a98f35f"
                },
                {
                  "fixed": "43c82c321db58ea3e375dd475de60befbfcf2a11"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:fastify:passport:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.1.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:fastify:passport:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "2.0.0"
                      },
                      {
                        "fixed": "2.3.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "43c82c321db58ea3e375dd475de60befbfcf2a11"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.0.1",
            "v2.2.0",
            "v2.1.0",
            "v2.0.1",
            "v2.0.0",
            "v1.0.0",
            "v0.5.0",
            "v0.4.1",
            "v0.3.0",
            "v0.2.0",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-29019.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.018275769Z",
      "provider": "osv",
      "references": [
        "https://owasp.org/www-community/attacks/Session_fixation",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/29xxx/CVE-2023-29019.json",
        "https://github.com/fastify/fastify-passport/security/advisories/GHSA-4m3m-ppvx-xgw9",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-29019",
        "https://github.com/fastify/fastify-passport/commit/43c82c321db58ea3e375dd475de60befbfcf2a11"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-384"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/29xxx/CVE-2023-29019.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-29019",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499908,
  "published_at": "2023-04-21T22:28:55.045+00:00"
}