{"id":"CVE-2026-35602","aliases":["GHSA-qh78-rvg3-cv54","GO-2026-5582"],"url":"https://o3.security/vulnerability/CVE-2026-35602","summary":"Vikunja has a File Size Limit Bypass via Vikunja Import","details":"Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the Vikunja file import endpoint uses the attacker-controlled Size field from the JSON metadata inside the import zip instead of the actual decompressed file content length for the file size enforcement check. By setting Size to 0 in the JSON while including large compressed file entries in the zip, an attacker bypasses the configured maximum file size limit. This vulnerability is fixed in 2.3.0.","published":"2026-04-10T16:10:39.630Z","modified":"2026-08-07T11:50:59.697967193Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"code.vikunja.io/api","fixedVersion":"2.3.0"}],"fix":{"url":"https://github.com/go-vikunja/vikunja/pull/2575","label":"go-vikunja/vikunja#2575"},"references":[{"type":"WEB","url":"https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35602.json"},{"type":"ADVISORY","url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-qh78-rvg3-cv54"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35602"},{"type":"FIX","url":"https://github.com/go-vikunja/vikunja/pull/2575"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:50:59.697967193Z"}}