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CVE-2026-54562

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 4.1
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:05741b0664fb77751b18cf5ee8dad474342158222c5938b62bd923bf90279b2c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"cloudreve","vendor":"cloudreve","versions":[{"status":"affected","version":"< 4.16.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b5dc5a83682ac81e978b17cec8f3ef245f3de01618e5753b0294eac2ddce9c21 · sha256:342918e94d848779… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"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"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b5dc5a83682ac81e978b17cec8f3ef245f3de01618e5753b0294eac2ddce9c21 · sha256:342918e94d848779… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b5dc5a83682ac81e978b17cec8f3ef245f3de01618e5753b0294eac2ddce9c21 · sha256:342918e94d848779… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/cloudreve/cloudreve/commit/aaebf317a78f2413d74afd66c21a1f3143711312","tags":["x_refsource_MISC"],"url":"https://github.com/cloudreve/cloudreve/commit/aaebf317a78f2413d74afd66c21a1f3143711312"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b5dc5a83682ac81e978b17cec8f3ef245f3de01618e5753b0294eac2ddce9c21 · sha256:342918e94d848779… · /containers/cna/references/1
{"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"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b5dc5a83682ac81e978b17cec8f3ef245f3de01618e5753b0294eac2ddce9c21 · sha256:342918e94d848779… · /containers/cna/references/2
{"tags":["exploit"],"url":"https://github.com/cloudreve/cloudreve/security/advisories/GHSA-x756-g4x3-c64m"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b5dc5a83682ac81e978b17cec8f3ef245f3de01618e5753b0294eac2ddce9c21 · sha256:342918e94d848779… · /containers/adp/0/references/0
{"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"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b5dc5a83682ac81e978b17cec8f3ef245f3de01618e5753b0294eac2ddce9c21 · sha256:342918e94d848779… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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