CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2026-49980
Critical (9.8) in rclone rclone. EPSS 0.8% chance of exploitation in the next 30 days. Fixed in github.com/rclone/rclone 1.74.3.
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.
Severity
- EPSS
- 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-306, CWE-78
- Published
- Modified
- Record from
- the NVD, synced
Affected
- rclone:rclone
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-qw24-gh76-8rvv | Go | github.com/rclone/rclone | >=1.46.0 <1.74.3 | 1.74.3 |
| GO-2026-5596 | Go | github.com/rclone/rclone | >=1.49.0 <1.74.3 | 1.74.3 |
| GO-2026-5596 | Go | github.com/ncw/rclone | >=1.46.0 | no fix published |