Vulnerability · Published Sep 27, 2026 · Assigned by VulnCheck
CVE-2026-101051Cloudreve before 4.16.1 Path Traversal via Remote Download
Low 3.1
In plain English
A low-severity path traversal in cloudreve from cloudreve. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).
Severity (CVSS 3.1)3.1Low
Exploit odds (30 days)0.3%top 82.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Cloudreve before 4.16.1 fails to properly sanitize file paths returned by remote downloaders, allowing authenticated users to create files outside the selected destination directory. Attackers can exploit path traversal sequences in downloader metadata to write files to unexpected locations within accessible namespaces.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/cloudreve/Cloudreve | no fix listed | GO-2026-6289 |
| Go | github.com/cloudreve/Cloudreve/v3 | no fix listed | GO-2026-6289 |
| Go | github.com/cloudreve/Cloudreve/v4 | no fix listed | GHSA-w8j7-39hp-8x59 |
| Go | github.com/cloudreve/Cloudreve/v4 | no fix listed | GO-2026-6289 |
Affected products (as reported)
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
References
- GitHub Security Advisory (GHSA-w8j7-39hp-8x59) vendor-advisory
- VulnCheck Advisory: Cloudreve before 4.16.1 Path Traversal via Remote Download third-party-advisory