{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54562","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-15T19:04:14.457Z","datePublished":"2026-07-15T14:37:37.176Z","dateUpdated":"2026-07-15T15:00:16.053Z"},"containers":{"cna":{"title":"Cloudreve: Non-admin remote download users can SSRF loopback/internal services and read imported responses","problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/cloudreve/cloudreve/security/advisories/GHSA-x756-g4x3-c64m","tags":["x_refsource_CONFIRM"],"url":"https://github.com/cloudreve/cloudreve/security/advisories/GHSA-x756-g4x3-c64m"},{"name":"https://github.com/cloudreve/cloudreve/commit/aaebf317a78f2413d74afd66c21a1f3143711312","tags":["x_refsource_MISC"],"url":"https://github.com/cloudreve/cloudreve/commit/aaebf317a78f2413d74afd66c21a1f3143711312"},{"name":"https://github.com/cloudreve/cloudreve/releases/tag/4.16.1","tags":["x_refsource_MISC"],"url":"https://github.com/cloudreve/cloudreve/releases/tag/4.16.1"}],"affected":[{"vendor":"cloudreve","product":"cloudreve","versions":[{"version":"< 4.16.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-15T14:37:37.176Z"},"descriptions":[{"lang":"en","value":"Cloudreve is a self-hosted file management and sharing system. Prior to 4.16.1, Cloudreve's remote download workflow accepts user-supplied URLs at POST /api/v4/workflow/download and passes them to the configured downloader without blocking loopback, localhost, IPv6 localhost, or redirect-to-loopback targets, allowing a non-admin user with remote download permission to fetch internal-only URLs and read the response after it is imported into the user's own files. This issue is fixed in version 4.16.1."}],"source":{"advisory":"GHSA-x756-g4x3-c64m","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/cloudreve/cloudreve/security/advisories/GHSA-x756-g4x3-c64m","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-15T15:00:11.592846Z","id":"CVE-2026-54562","options":[{"Exploitation":"poc"},{"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":"2026-07-15T15:00:16.053Z"}}]}}