Vulnerability details
CVE-2026-49980
rclone rclone
Rclone: Unauthenticated command execution in `rclone rcd --rc-serve` via inline remote instantiation, bypassing CVE-2026-41179 fix
CVSS 3.1
9.8Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 8.1High | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| rclone | rclone | >= 1.46.0, < 1.74.3 | CVEProject cvelistV5 (CNA) |
References and advisories
4- https://github.com/rclone/rclone/security/advisories/GHSA-qw24-gh76-8rvv x_refsource_CONFIRM
- https://access.redhat.com/security/cve/CVE-2026-49980 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2492478 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49980.json x_sadp-csaf-vex
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Details
- Published
- 2026-06-24
- Last updated
- 2026-08-10
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.78%
Probability of exploitation in 30 days
56.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-306Missing Authentication for Critical Function
- CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')