{"id":"EUVD-2026-78653","revision":"5308087157494dad85da9e0a61140ab8","records":[{"revision":"5308087157494dad85da9e0a61140ab8","observedAt":"2026-11-03T14:03:23.301+00:00","statement":{"source":"euvd","id":"EUVD-2026-78653","aliases":["CVE-2026-91982","GHSA-jmr8-r558-3jhx","GHSA-88f6-4rjv-x774"],"title":"Vikunja before 2.6.0 continues to expose the raw TOTP shared secret after enrollment through the GET /api/v1/user/settings/totp and /api/v1/user/settings/totp/qrcode endpoints without re-authentication. Attackers with a valid access token c…","description":"Vikunja before 2.6.0 continues to expose the raw TOTP shared secret after enrollment through the GET /api/v1/user/settings/totp and /api/v1/user/settings/totp/qrcode endpoints without re-authentication. Attackers with a valid access token can read the secret, import it into their own authenticator, and generate valid codes indefinitely to defeat the second factor and enable account takeover.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":5.3,"severity":null}],"references":["https://github.com/go-vikunja/vikunja/security/advisories/GHSA-88f6-4rjv-x774","https://www.vulncheck.com/advisories/vikunja-before-2.6.0-totp-secret-disclosure-via-api"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-78653","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 15, 2026, 3:18:26 PM","dateUpdated":"Sep 17, 2026, 3:14:33 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-78653","identifiers":["EUVD-2026-78653","CVE-2026-91982","GHSA-jmr8-r558-3jhx","GHSA-88f6-4rjv-x774"]},"retained":false,"historicalAffected":[]}],"coverage":[]}