Vikunja: Plaintext storage of password-reset/email-confirm tokens in database enables account takeover on DB read access

{
  "id": "59de3b84db456fa3f162529c54cae0c4f3e2246ecb405f6b26435514354d3575",
  "url": "https://osv.dev/vulnerability/CVE-2026-62376",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Vikunja: Plaintext storage of password-reset/email-confirm tokens in database enables account takeover on DB read access",
    "summary": "Vikunja is an open-source self-hosted task management platform. Versions prior to 2.4.0 store password-reset, email-confirmation, and account-deletion tokens in the `user_tokens` table in plaintext. If an attacker gains read access to the database through a backup leak, misconfigured storage, or SQL-level exposure, they can immediately use pending tokens to take over user accounts without knowing passwords. Version 2.4.0 fixes the issue.",
    "evidence": "osv:CVE-2026-62376",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-62376",
      "aliases": [
        "CVE-2026-62376",
        "GHSA-r6w9-259g-gwrv",
        "GO-2026-6748"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/go-vikunja/vikunja",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "907850feae3866ae9b16ea1c7b84a4d77273415a"
                },
                {
                  "fixed": "00fd2c6155c01faae99be4226b931d8091fd6323"
                },
                {
                  "fixed": "3a0ea15d8c18ff960bc98ae39950fa7a14b0af7d"
                },
                {
                  "fixed": "e31ea2de5040fa63bc97cf4df63bafed3bd9ad85"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.4.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "00fd2c6155c01faae99be4226b931d8091fd6323"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "3a0ea15d8c18ff960bc98ae39950fa7a14b0af7d"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e31ea2de5040fa63bc97cf4df63bafed3bd9ad85"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "907850feae3866ae9b16ea1c7b84a4d77273415a"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.4.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.3.0",
            "v2.2.2",
            "v2.2.1",
            "v2.2.0",
            "v2.1.0",
            "v2.0.0",
            "v1.1.0",
            "v1.0.0",
            "v1.0.0-rc4",
            "v1.0.0-rc3",
            "v1.0.0-rc2",
            "v1.0.0-rc1",
            "v1.0.0-rc0",
            "v0.24.1",
            "v0.23.0",
            "v0.22.1",
            "v0.22.0",
            "v0.21.0",
            "v0.20.4",
            "v0.20.3",
            "v0.20.1",
            "v0.20.0",
            "v0.19.2",
            "v0.19.1",
            "v0.19.0",
            "v0.18.1",
            "v0.18.0",
            "v0.17.0",
            "v0.16.0",
            "v0.15.0",
            "v0.14.0",
            "v0.13",
            "v0.12",
            "v0.11",
            "v0.10",
            "v0.9",
            "v0.8",
            "v0.7",
            "v0.6",
            "v0.5",
            "v0.4",
            "v0.3",
            "v0.2",
            "v0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-62376.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:45.980672557Z",
      "provider": "osv",
      "references": [
        "https://github.com/go-vikunja/vikunja/releases/tag/v2.4.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62376.json",
        "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-r6w9-259g-gwrv",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-62376",
        "https://github.com/go-vikunja/vikunja/commit/00fd2c6155c01faae99be4226b931d8091fd6323",
        "https://github.com/go-vikunja/vikunja/commit/3a0ea15d8c18ff960bc98ae39950fa7a14b0af7d",
        "https://github.com/go-vikunja/vikunja/commit/e31ea2de5040fa63bc97cf4df63bafed3bd9ad85"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-312",
          "CWE-916"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62376.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-62376",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 514287,
  "published_at": "2026-10-09T20:50:35.524+00:00"
}