{"action":"Upgrade code.vikunja.io/api to 2.4.0 or later.","affected":[{"fixed":"2.4.0","introduced":"0.22.0"}],"component":"code.vikunja.io/api","cve_ids":["CVE-2026-68581"],"ecosystem":"Go","exploited":false,"fixed_versions":["2.4.0"],"ghsa_id":"GHSA-vvcv-vpph-h844","id":"tcs_01M5JJP1PRCVHCFCGQD3SH7DYR","modified_at":"2026-10-19T21:41:06.033854160Z","published_at":"2026-10-09T20:42:14Z","references":["https://osv.dev/vulnerability/GHSA-vvcv-vpph-h844","https://github.com/go-vikunja/vikunja/security/advisories/GHSA-vvcv-vpph-h844","https://nvd.nist.gov/vuln/detail/CVE-2026-68581","https://github.com/go-vikunja/vikunja/commit/95b7e673fb5ee407498fa4b13e8b4c57847a4a0b","https://github.com/go-vikunja/vikunja/commit/e6b25bd57b537ef9a72b5acdadf446ca5ef77bfa","https://github.com/go-vikunja/vikunja","https://github.com/go-vikunja/vikunja/releases/tag/v2.4.0","https://www.vulncheck.com/advisories/vikunja-through-authentication-bypass-via-principal-id-collision"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"GHSA-vvcv-vpph-h844","url":"https://osv.dev/vulnerability/GHSA-vvcv-vpph-h844"}],"summary":"Vikunja: Link-share principal ID collision allows cross-account API token issuance and management"}