Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Cloudreve (github.com/cloudreve/Cloudreve/v4) versions up to and including 4.0.0-20260606032813-26b6b1044b02 are affected. A file name reported by the configured remote downloader can contain path traversal sequences, so a downloaded file can be created outside the destination folder the user chose. An authenticated user with remote-download permission could place files in other writable locations, though normal permission and upload checks still apply. No fixed version is listed.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 2.3 | Low | 4.0 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N | CNA (VulnCheck) |
- CISA KEV Not listed.
- EPSS 0.0026, the 17th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:12 UTC First seen by agentprime
- 31 Oct 2026, 14:12 UTC Confirmed by OSV