Vikunja’s Improper Access Control Enables Bypass of Administrator-Imposed Account Disablement

{
  "id": "ea723c7658b578c8577c9d67eb9c383317874d82ed38a3ccb23d54ab97e28bff",
  "url": "https://osv.dev/vulnerability/CVE-2026-33316",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Vikunja’s Improper Access Control Enables Bypass of Administrator-Imposed Account Disablement",
    "summary": "Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.0, a flaw in Vikunja’s password reset logic allows disabled users to regain access to their accounts. The `ResetPassword()` function sets the user’s status to `StatusActive` after a successful password reset without verifying whether the account was previously disabled. By requesting a reset token through `/api/v1/user/password/token` and completing the reset via `/api/v1/user/password/reset`, a disabled user can reactivate their account and bypass administrator-imposed account disablement. Version 2.2.0 patches the issue.",
    "evidence": "osv:CVE-2026-33316",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-33316",
      "aliases": [
        "CVE-2026-33316",
        "GHSA-vq4q-79hh-q767",
        "GO-2026-4798"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/go-vikunja/vikunja",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "b365be1881641dd2791d3dff4c26ad941c13cef6"
                },
                {
                  "fixed": "049f4a6be46f9460bd516f489ef9f569574bc70d"
                },
                {
                  "fixed": "d8570c603da1f26635ce6048d6af85ede827abfb"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.2.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "049f4a6be46f9460bd516f489ef9f569574bc70d"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d8570c603da1f26635ce6048d6af85ede827abfb"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "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-2026-33316.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:33.518729807Z",
      "provider": "osv",
      "references": [
        "https://vikunja.io/changelog/vikunja-v2.2.0-was-released",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33316.json",
        "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-vq4q-79hh-q767",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-33316",
        "https://github.com/go-vikunja/vikunja/commit/049f4a6be46f9460bd516f489ef9f569574bc70d",
        "https://github.com/go-vikunja/vikunja/commit/d8570c603da1f26635ce6048d6af85ede827abfb"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-284",
          "CWE-862",
          "CWE-863"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33316.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-33316",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 500342,
  "published_at": "2026-03-24T14:59:17.242+00:00"
}