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CVE-2026-55499

Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, a single-file share event-stream subscription resolves the share root to the owner’s parent folder and subscribes to that folder topic, allowing an authenticated share recipient to receive names, paths, rename targets, event types, and hashed identifiers for unshared sibling files and folders. This issue is fixed in version 4.17.0.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9e204ec761581afab5455e621b60f461dc462825676eed3283e7d8f89a6afc30
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":"< 4.17.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c82a77b8700dca233fd22bc1eaeedc17ed540e0a9dbb05f17a29041bbf442e2b · sha256:729dbd0633b0ffc4… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c82a77b8700dca233fd22bc1eaeedc17ed540e0a9dbb05f17a29041bbf442e2b · sha256:729dbd0633b0ffc4… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c82a77b8700dca233fd22bc1eaeedc17ed540e0a9dbb05f17a29041bbf442e2b · sha256:729dbd0633b0ffc4… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/cloudreve/cloudreve/commit/0b00dd308f132d6e6e8476857ef79f4865600bbc","tags":["x_refsource_MISC"],"url":"https://github.com/cloudreve/cloudreve/commit/0b00dd308f132d6e6e8476857ef79f4865600bbc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82a77b8700dca233fd22bc1eaeedc17ed540e0a9dbb05f17a29041bbf442e2b · sha256:729dbd0633b0ffc4… · /containers/cna/references/1
{"name":"https://github.com/cloudreve/cloudreve/releases/tag/4.17.0","tags":["x_refsource_MISC"],"url":"https://github.com/cloudreve/cloudreve/releases/tag/4.17.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82a77b8700dca233fd22bc1eaeedc17ed540e0a9dbb05f17a29041bbf442e2b · sha256:729dbd0633b0ffc4… · /containers/cna/references/2
{"name":"https://github.com/cloudreve/cloudreve/security/advisories/GHSA-w8x7-h2px-xmq8","tags":["x_refsource_CONFIRM"],"url":"https://github.com/cloudreve/cloudreve/security/advisories/GHSA-w8x7-h2px-xmq8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82a77b8700dca233fd22bc1eaeedc17ed540e0a9dbb05f17a29041bbf442e2b · sha256:729dbd0633b0ffc4… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/cloudreve/cloudreve/security/advisories/GHSA-w8x7-h2px-xmq8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c82a77b8700dca233fd22bc1eaeedc17ed540e0a9dbb05f17a29041bbf442e2b · sha256:729dbd0633b0ffc4… · /containers/adp/0/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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