{"id":"EUVD-2026-21414","enisaUuid":"6440590c-7a2d-39b7-85f8-b2185dc2b252","description":"Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the OIDC callback handler issues a full JWT token without checking whether the matched user has TOTP two-factor authentication enabled. When a local user with TOTP enrolled is matched via the OIDC email fallback mechanism, the second factor is completely skipped. This vulnerability is fixed in 2.3.0.","datePublished":"Apr 10, 2026, 3:45:30 PM","dateUpdated":"Apr 13, 2026, 3:37:32 PM","baseScore":7.4,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","references":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8jvc-mcx6-r4cg\n","aliases":"CVE-2026-34727\nGHSA-8jvc-mcx6-r4cg\n","assigner":"GitHub_M","epss":0.28,"enisaIdProduct":[{"id":"8754205c-a1ef-39c1-9291-00eb2bbb6163","product":{"name":"vikunja","vendor":{"name":"go-vikunja"}},"product_version":"\u003c 2.3.0"}],"enisaIdVendor":[{"id":"1bfd24fc-f04e-3f17-bc3f-84a8cc762944","vendor":{"name":"go-vikunja"}}],"enisaIdVulnerability":[{"id":"a09ae985-e291-3190-ae56-a483485a2e43","vulnerability":{"id":"CVE-2026-34727","description":"Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the OIDC callback handler issues a full JWT token without checking whether the matched user has TOTP two-factor authentication enabled. When a local user with TOTP enrolled is matched via the OIDC email fallback mechanism, the second factor is completely skipped. This vulnerability is fixed in 2.3.0.","datePublished":"Apr 10, 2026, 3:45:30 PM","dateUpdated":"Apr 13, 2026, 3:37:32 PM","status":"PUBLISHED","baseScore":7.4,"baseScoreVersion":"3.1","baseScoreVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","references":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8jvc-mcx6-r4cg\n","enisa_id":"EUVD-2026-21414\n","assigner":"GitHub_M","epss":0.28,"dataProcessed":"Nov 3, 2026, 7:18:54 AM","vulnerabilityProduct":[{"id":"83dc2521-a63d-32de-8ef2-d92738abdad1","product":{"name":"vikunja","vendor":{"name":"go-vikunja"}},"product_version":"\u003c 2.3.0"}],"vulnerabilityVendor":[{"id":"19e417ef-ebc8-364c-b898-c7ad3d52b0fb","vendor":{"name":"go-vikunja"}}]}},{"id":"bfb8e5fc-f72e-364b-a06f-265bdab8ee3c","vulnerability":{"id":"GHSA-8jvc-mcx6-r4cg","description":"Vikunja has TOTP Two-Factor Authentication Bypass via OIDC Login Path","datePublished":"Apr 10, 2026, 3:30:57 PM","dateUpdated":"Jul 21, 2026, 1:49:14 PM","baseScore":0.0,"references":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8jvc-mcx6-r4cg\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-34727\nhttps://github.com/go-vikunja/vikunja/pull/2582\nhttps://github.com/go-vikunja/vikunja/commit/b642b2a4536a3846e627a78dce2fdd1be425e6a1\nhttps://github.com/go-vikunja/vikunja\nhttps://github.com/go-vikunja/vikunja/releases/tag/v2.3.0\n","enisa_id":"EUVD-2026-21414\n","aliases":"GHSA-8jvc-mcx6-r4cg\nCVE-2026-34727\n","epss":0.0,"dataProcessed":"Nov 1, 2026, 1:59:37 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}}],"enisaIdAdvisory":[]}