{"id":"GO-2026-6753","summary":"Vikunja: Link-share principal ID collision allows cross-account API token issuance and management in code.vikunja.io/api","details":"Vikunja: Link-share principal ID collision allows cross-account API token issuance and management in code.vikunja.io/api.\n\nNOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.\n\n(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)\n\nThe additional affected modules and versions are: code.vikunja.io/api before v2.4.0.","aliases":["CVE-2026-68581","GHSA-vvcv-vpph-h844"],"modified":"2026-10-19T21:31:52.825464681Z","published":"2026-10-19T21:08:26Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2026-6753","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-vvcv-vpph-h844"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68581"},{"type":"WEB","url":"https://github.com/go-vikunja/vikunja/commit/95b7e673fb5ee407498fa4b13e8b4c57847a4a0b"},{"type":"WEB","url":"https://github.com/go-vikunja/vikunja/commit/e6b25bd57b537ef9a72b5acdadf446ca5ef77bfa"},{"type":"WEB","url":"https://github.com/go-vikunja/vikunja/releases/tag/v2.4.0"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/vikunja-through-authentication-bypass-via-principal-id-collision"}],"affected":[{"package":{"name":"code.vikunja.io/api","ecosystem":"Go","purl":"pkg:golang/code.vikunja.io/api"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.22.0"}]}],"ecosystem_specific":{"custom_ranges":[{"events":[{"introduced":"0"},{"fixed":"2.4.0"}],"type":"ECOSYSTEM"}]},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2026-6753.json"}}],"schema_version":"1.9.0"}