{"id":"CVE-2026-54097","state":"PUBLISHED","title":"File Browser: Cross-user unauthorized share-link deletion via unbounded prefix match in DeleteWithPathPrefix","description":"File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.6, a low-privileged authenticated user of filebrowser (with create + delete permissions in their own isolated scope) can silently destroy share-link records belonging to any other user — including the administrator — by performing a legitimate DELETE on a file in their own directory whose logical path happens to be a byte-prefix of another user's stored share.Link.Path. The file contents of the victim are not exposed, but the victim's share links are irrevocably wiped. This vulnerability is fixed in 2.63.6.","publishedAt":"2026-06-25T17:40:18.235Z","updatedAt":"2026-06-26T13:54:00.964Z","severity":{"score":7.2,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["filebrowser filebrowser"],"affected":[{"vendor":"filebrowser","product":"filebrowser","versions":[{"version":"< 2.63.6","status":"affected"}]}],"references":["https://github.com/filebrowser/filebrowser/security/advisories/GHSA-5ww9-jg6q-38r7","https://github.com/filebrowser/filebrowser/commit/0231b7ebdfbe77a6c54027d30c4856c3fd81ee4d","https://github.com/filebrowser/filebrowser/releases/tag/v2.63.6"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54097.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54097","state":"PUBLISHED","datePublished":"2026-06-25T17:40:18.235Z","dateUpdated":"2026-06-26T13:54:00.964Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-11T18:44:47.762Z"},"containers":{"cna":{"title":"File Browser: Cross-user unauthorized share-link deletion via unbounded prefix match in DeleteWithPathPrefix","descriptions":[{"lang":"en","value":"File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.6, a low-privileged authenticated user of filebrowser (with create + delete permissions in their own isolated scope) can silently destroy share-link records belonging to any other user — including the administrator — by performing a legitimate DELETE on a file in their own directory whose logical path happens to be a byte-prefix of another user's stored share.Link.Path. The file contents of the victim are not exposed, but the victim's share links are irrevocably wiped. This vulnerability is fixed in 2.63.6."}],"affected":[{"vendor":"filebrowser","product":"filebrowser","versions":[{"version":"< 2.63.6","status":"affected"}]}],"references":[{"url":"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-5ww9-jg6q-38r7","name":"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-5ww9-jg6q-38r7","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/filebrowser/filebrowser/commit/0231b7ebdfbe77a6c54027d30c4856c3fd81ee4d","name":"https://github.com/filebrowser/filebrowser/commit/0231b7ebdfbe77a6c54027d30c4856c3fd81ee4d","tags":["x_refsource_MISC"]},{"url":"https://github.com/filebrowser/filebrowser/releases/tag/v2.63.6","name":"https://github.com/filebrowser/filebrowser/releases/tag/v2.63.6","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.2,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-06-25T17:40:18.235Z"},"source":{"advisory":"GHSA-5ww9-jg6q-38r7","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-26T13:53:56.115457Z","id":"CVE-2026-54097","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-26T13:54:00.964Z"}}]}}}