{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53784","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-06-10T20:14:32.826Z","datePublished":"2026-08-13T14:34:22.543Z","dateUpdated":"2026-08-15T03:17:19.548Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-08-14T16:50:05.154Z"},"title":"rsync < 3.5.0 Path Traversal via Symlink Module Root","datePublic":"2026-08-12T00:00:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-59","description":"CWE-59 Improper Link Resolution Before File Access ('Link Following')","type":"CWE"}]}],"affected":[{"vendor":"RsyncProject","product":"rsync","repo":"https://github.com/RsyncProject/rsync","versions":[{"status":"affected","version":"0","lessThanOrEqual":"3.4.4","versionType":"semver"},{"status":"unaffected","version":"3.5.0","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:github/RsyncProject/rsync"}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*","versionEndIncluding":"3.4.4"}]}]}],"descriptions":[{"lang":"en","value":"rsync before 3.5.0 contains a path traversal vulnerability that allows remote clients to access files outside the intended module root when use chroot is disabled and the module root path or a component of it is a symlink. The daemon calls chdir() to the module root at session initialization without resolving symlinks via realpath() or equivalent, causing subsequent relative-path operations to reference files relative to the symlink target rather than the intended module root, enabling unauthorized file access.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>rsync before 3.5.0&nbsp;contains a path traversal vulnerability that allows remote clients to access files outside the intended module root when use chroot is disabled and the module root path or a component of it is a symlink. The daemon calls chdir() to the module root at session initialization without resolving symlinks via realpath() or equivalent, causing subsequent relative-path operations to reference files relative to the symlink target rather than the intended module root, enabling unauthorized file access.</p>"}]}],"references":[{"url":"https://github.com/RsyncProject/rsync/security/advisories/GHSA-ffg2-fr5g-3rxw","name":"GitHub Security Advisory (GHSA-ffg2-fr5g-3rxw)","tags":["vendor-advisory"]},{"url":"https://github.com/RsyncProject/rsync/releases/tag/v3.5.0","name":"rsync 3.5.0 Release Notes","tags":["release-notes"]},{"url":"https://www.vulncheck.com/advisories/rsync-path-traversal-via-symlink-module-root","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.4,"vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","baseSeverity":"HIGH","baseScore":7.1,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"}}],"source":{"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-15T03:17:06.422917Z","id":"CVE-2026-53784","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-15T03:17:19.548Z"}}]}}