Vulnerability Description
Rclone from v1.68.0 before v1.75.2 contains an authorization bypass vulnerability in serve s3 --auth-proxy that allows authenticated tenants to manipulate other tenants' multipart uploads by referencing their upload IDs. Attackers who learn a victim's bucket, object, and upload ID can inject parts, complete, or abort in-flight uploads and view upload and object metadata across tenants.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Rclone | Rclone | >= 1.68.0, < 1.75.2 |
Related Weaknesses (CWE)
References
- https://github.com/rclone/rclone/security/advisories/GHSA-35g6-9fjv-rmx5Vendor Advisory
- https://www.vulncheck.com/advisories/rclone-1.68.0-before-1.75.2-authorization-bThird Party Advisory
FAQ
What is CVE-2026-116187?
CVE-2026-116187 is a vulnerability with a CVSS score of 5.0 (MEDIUM). Rclone from v1.68.0 before v1.75.2 contains an authorization bypass vulnerability in serve s3 --auth-proxy that allows authenticated tenants to manipulate other tenants' multipart uploads by referenci...
How severe is CVE-2026-116187?
CVE-2026-116187 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-116187?
Check the references section above for vendor advisories and patch information. Affected products include: Rclone Rclone.