{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"code.vikunja.io/api","cve_ids":["CVE-2026-91985"],"ecosystem":"Go","exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-qfwc-vx6f-3g6g","id":"tcs_01M5JJ4BT9EBE50H3C81BVRJ7T","modified_at":"2026-10-19T21:31:50.616440179Z","published_at":"2026-10-19T21:08:26Z","references":["https://osv.dev/vulnerability/GO-2026-6747","https://github.com/go-vikunja/vikunja/security/advisories/GHSA-qfwc-vx6f-3g6g","https://nvd.nist.gov/vuln/detail/CVE-2026-91985","https://github.com/go-vikunja/vikunja/commit/077dc4de79ce6f1ab59215a2c7bf9b30423685f2","https://github.com/go-vikunja/vikunja/pull/3688","https://github.com/go-vikunja/vikunja/releases/tag/v2.6.0","https://www.vulncheck.com/advisories/vikunja-before-2.6.0-privilege-escalation-via-link-share-hash"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GO-2026-6747","url":"https://osv.dev/vulnerability/GO-2026-6747"},{"source":"nvd","source_id":"CVE-2026-91985","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-91985"}],"summary":"Vikunja: Read-only project members can obtain any link share's access hash via the single-share read endpoint (v1 and v2) and escalate to the share's permission level in code.vikunja.io/api"}