{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72834","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-08-10T15:13:41.486Z","datePublished":"2026-08-14T11:35:40.049Z","dateUpdated":"2026-08-14T16:52:16.192Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-08-14T16:52:16.192Z"},"datePublic":"2026-07-25T00:00:00.000Z","title":"filebrowser before 2.63.19 Permission Bypass via checksum","descriptions":[{"lang":"en","value":"filebrowser before 2.63.19 contains a permission bypass in the /api/resources endpoint. The checksum (?checksum=) branch of resourceGetHandler reads the entire file to compute a digest and returns it without performing a Perm.Download check (unlike the sibling raw, preview, and subtitle paths). As a result, an authenticated user provisioned with Perm.Download=false can obtain a content-hash oracle for any same-scope file (md5/sha1/sha256/sha512), enabling confirmation of known/guessed content, change detection, and offline brute-force of low-entropy files. This is an incomplete fix of CVE-2026-35606; it bypasses only the Download permission and does not defeat scope/path authorization."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Exposure of Sensitive Information to an Unauthorized Actor","cweId":"CWE-200","type":"CWE"}]}],"affected":[{"vendor":"filebrowser","product":"filebrowser","defaultStatus":"unaffected","packageURL":"pkg:golang/github.com/filebrowser/filebrowser/v2","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"2.63.19"},{"version":"2.63.19","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*","versionEndExcluding":"2.63.19"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7whw-q6gh-xr59","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-7whw-q6gh-xr59)"},{"url":"https://github.com/filebrowser/filebrowser/commit/b7dc392838f11d188f0bc0f2a1a99fad3f7dca03","tags":["patch"],"name":"Patch Commit"},{"name":"VulnCheck Advisory: filebrowser before 2.63.19 Permission Bypass via checksum","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/filebrowser-before-permission-bypass-via-checksum"}],"credits":[{"lang":"en","value":"arpitjain099","type":"reporter"},{"lang":"en","value":"hacdias","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-14T14:38:41.645396Z","id":"CVE-2026-72834","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-14T14:38:51.298Z"}}]}}