All vulnerabilities
CVE-2026-116187GHSA-35g6-9fjv-rmx5

Rclone v1.68.0 before v1.75.2 Authorization Bypass in serve s3 Multipart Uploads

rclone rclone
Open in ThreatlineRecord JSON
CVSS
6.1Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed in1.75.2Fixed versionCVE List
Published25 Oct 2026Updated 25 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 2

  • rcloneaffected: 1.68.0 before 1.75.2CVE List
  • rcloneunaffected: 1.75.2CVE List

References 2