{"id":"CVE-2026-73243","summary":"kkFileView: Unauthenticated SSRF via /addTask with fullfilename type-confusion bypass","details":"kkFileView is a universal file online preview project based on Spring Boot. Prior to 5.0.1, the unauthenticated GET /addTask endpoint in kkFileView is omitted from TrustHostFilter and TrustDirFilter in server/src/main/java/cn/keking/config/WebConfig.java, allowing FileConvertQueueTask to fetch an attacker-selected URL after FileHandlerService#getFileAttribute uses the fullfilename parameter to force an OFFICE, COMPRESS, or CAD type. This issue is fixed in version 5.0.1.","aliases":["GHSA-gwwj-52hv-6g2m"],"modified":"2026-08-13T08:22:36.204024Z","published":"2026-08-11T20:04:38.710Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73243.json"},"references":[{"type":"WEB","url":"https://github.com/kekingcn/kkFileView/releases/tag/v5.0.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73243.json"},{"type":"ADVISORY","url":"https://github.com/kekingcn/kkFileView/security/advisories/GHSA-gwwj-52hv-6g2m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73243"},{"type":"REPORT","url":"https://github.com/kekingcn/kkFileView/issues/765"},{"type":"FIX","url":"https://github.com/kekingcn/kkFileView/commit/32a887aa2cd70228998c617c4e7df6cfcf3fe709"},{"type":"FIX","url":"https://github.com/kekingcn/kkFileView/pull/767"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/kekingcn/kkfileview","events":[{"introduced":"0"},{"fixed":"32a887aa2cd70228998c617c4e7df6cfcf3fe709"},{"fixed":"e134689df3d9c6ae48749d42cc282d9920dd0813"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"5.0.1"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v5.0.0","v4.4.0","v4.4.0-beta","v4.3.0","v4.2.1","v4.2.0","v4.1.0","v4.0.0","v3.6.0","v3.5.1","v3.5","v3.3.0","v2.2.1","v2.2.0","v2.2.0-SNAPSHOT","v2.1.2","v2.1.1","v2.1.0","v2.0.2","v2.0.1","v2.0","v1.1","v1.0","v0.0.2","0.0.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73243.json","vanir_signatures_modified":"2026-08-13T08:22:36Z","vanir_signatures":[{"deprecated":false,"digest":{"function_hash":"224873658018846299016059931804661083149","length":310},"id":"CVE-2026-73243-a103275f","signature_type":"Function","signature_version":"v1","source":"https://github.com/kekingcn/kkfileview/commit/32a887aa2cd70228998c617c4e7df6cfcf3fe709","target":{"file":"server/src/main/java/cn/keking/config/WebConfig.java","function":"getTrustDirFilter"}},{"signature_type":"Function","signature_version":"v1","source":"https://github.com/kekingcn/kkfileview/commit/32a887aa2cd70228998c617c4e7df6cfcf3fe709","target":{"function":"getTrustHostFilter","file":"server/src/main/java/cn/keking/config/WebConfig.java"},"deprecated":false,"digest":{"function_hash":"224873658018846299016059931804661083149","length":310},"id":"CVE-2026-73243-d8d13188"},{"signature_type":"Line","signature_version":"v1","source":"https://github.com/kekingcn/kkfileview/commit/32a887aa2cd70228998c617c4e7df6cfcf3fe709","target":{"file":"server/src/main/java/cn/keking/config/WebConfig.java"},"deprecated":false,"digest":{"line_hashes":["13296125368202005509500338700334611694","178948382256939390799363508493039515587","185575847299686316572047879516329394925","230840216194900957998888873520415974076","13296125368202005509500338700334611694","275567120436232859331849202483498752147","57143134791556056797824837501397414962","158080172374898212620909563864984074062"],"threshold":0.9},"id":"CVE-2026-73243-e2e71ecf"}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N"}]}