CVSS 3.1
4.3 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NCVE-2026-55495
Medium (4.3). EPSS 0.4% chance of exploitation in the next 30 days. Fixed in github.com/cloudreve/Cloudreve/v4 4.0.0-20260613023150-7968e50429ef.
Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, the WOPI PUT_RELATIVE handler passes X-WOPI-SuggestedTarget to URI.JoinRaw as a path rather than a filename, allowing slash and dot-dot segments to escape the source file directory and create or conditionally overwrite files elsewhere in the same owner account. This issue is fixed in version 4.17.0.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-49h3-cwhj-4737 | Go | github.com/cloudreve/Cloudreve/v4 | <4.0.0-20260613023150-7968e50429ef | 4.0.0-20260613023150-7968e50429ef |
| GHSA-49h3-cwhj-4737 | Go | github.com/cloudreve/Cloudreve/v3 | <=3.0.0-20250225100611-da4e44b77af4 | no fix published |
| GO-2026-6097 | Go | github.com/cloudreve/Cloudreve | all versions | no fix published |
| GO-2026-6097 | Go | github.com/cloudreve/Cloudreve/v3 | all versions | no fix published |
| GO-2026-6097 | Go | github.com/cloudreve/Cloudreve/v4 | <4.0.0-20260613023150-7968e50429ef | 4.0.0-20260613023150-7968e50429ef |
References
- https://github.com/cloudreve/cloudreve/commit/7968e50429efab40ffa8f57fecdfbd5a73d23630
- https://github.com/cloudreve/cloudreve/releases/tag/4.17.0
- https://github.com/cloudreve/cloudreve/security/advisories/GHSA-49h3-cwhj-4737
- https://github.com/cloudreve/cloudreve/security/advisories/GHSA-49h3-cwhj-4737