{"id":"CVE-2026-56768","summary":"Seahub \u003c 13.0.23 - Authentication Bypass in ShareLinkZipTaskView GET Method","details":"Seahub before 13.0.23 does not enforce SHARE_LINK_LOGIN_REQUIRED on GET /api/v2.1/share-link-zip-task/, allowing unauthenticated users to bypass authentication. Attackers with a folder share-link token can call the GET endpoint to obtain a fileserver zip token and download entire shared directory trees.","modified":"2026-06-26T04:11:25.818573880Z","published":"2026-06-25T18:05:06.817Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56768.json","cwe_ids":["CWE-862"],"cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56768.json"},{"type":"PACKAGE","url":"https://github.com/haiwen/seahub"},{"type":"FIX","url":"https://github.com/haiwen/seahub/commit/162cddae0831188d02bb8d451dc2193e197dcc57"},{"type":"FIX","url":"https://github.com/haiwen/seahub/commit/b609949cf64ed6a15708d0fb5ea9c179962e23cc"},{"type":"REPORT","url":"https://github.com/haiwen/seahub/issues/9050"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56768"},{"type":"ADVISORY","url":"https://plus.seafile.com/wiki/publish/seafile-wiki/v5D5/"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/seahub-authentication-bypass-in-sharelinkziptaskview-get-method"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/haiwen/seahub","events":[{"introduced":"0"},{"fixed":"486e27b614636b01b1beabc468efff69c3fb8a30"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"13.0.23"}]}}],"versions":["v4.2.2-server","v4.2.0-pro","v4.2.1-server","v4.2.0-server","v4.1.2-server","v4.1.0-pro","v4.1.1-server","v4.1.0-server","v4.0.0-pro","v4.0.1-server","v4.0.0-server","v3.1.7-server","v3.1.2-server-testing","v3.1.1-server","v3.1.1-server-testing","v3.1.0-server-testing","v2.1.3-testing","v2.1.3-server-testing","v2.1.3-server","v2.1.0-server-testing","v2.0.2-server","v2.0.1-pro","v1.7.0.2","v1.7.0","v1.6.0","v1.6.0-preview","v1.5.1","v1.5.0","v1.5.1-server","v1.4.0","1.2.0","0.9.3","0.9.2"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-56768.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}