VULNERABILITY INTELLIGENCE

CVE-2026-49980

CVSS score9.8 CRITICAL
EPSS probability0.78%
CISA KEVNot currently listed
Published2026-06-24
Last modified2026-08-07
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.46.0 until 1.74.3, rclone rcd --rc-serve accepts unauthenticated GET and HEAD requests to paths of the form: /[remote:path]/object. The remote value is parsed from the URL and passed to normal backend initialization. Inline remote configuration can set backend options that execute local commands during initialization. As a result, a single unauthenticated GET or HEAD request can execute a command as the rclone process user. This vulnerability is fixed in 1.74.3.

Weakness classification

  • security-advisories@github.com: CWE-306
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-78

Primary references