TI-2026-36813 Aliases CVE-2026-49980 GHSA-qw24-gh76-8rvv

Missing authentication in rclone

MEDIUM 50CWE-306Published 2026-06-24 · Updated 2026-08-10

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass, Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-306 and CWE-78.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00781 56th percentileScored 2026-11-07

Fix Fixed rclone (rclone): 1.74.3github.com/rclone/rclone (Go): 1.74.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
rclone	rclone	1.46.0 to before 1.74.3	1.74.3	Patch available	CNA
—	github.com/rclone/rclone (Go)	1.46.0 to before 1.74.3	1.74.3	Patch available	GHSA-qw24-gh76-8rvv

rclone Vendorrclone Affected 1.46.0 to before 1.74.3 Fixed in 1.74.3 Patch available CNA
github.com/rclone/rclone (Go) Vendor— Affected 1.46.0 to before 1.74.3 Fixed in 1.74.3 Patch available GHSA-qw24-gh76-8rvv

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:rclone:rclone::::::::	1.46 to before 1.74.3	Vulnerable	rclone

cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:* Versions 1.46 to before 1.74.3 Vulnerable ·rclone

Remediation

Fix · CNA rclone (rclone) Fixed in 1.74.3
Fix · GHSA-qw24-gh76-8rvv github.com/rclone/rclone (Go) Fixed in 1.74.3 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 3 products

Cryostat 4
OpenShift API for Data Protection
Red Hat Advanced Cluster Management for Kubernetes 2

Timeline

2026-10-02 Threatist record created from CVE-2026-49980
2026-10-03 Alias added: GHSA-qw24-gh76-8rvv

References

Advisory 5

Other 1

https://github.com/rclone/rclone

TI-2026-60044 rclone serve s3: --auth-proxy without --auth-key authenticates nobody - full SigV4 signature bypass CVSS 3.1CRITICAL 9.8
TI-2026-29802 RClone: Unauthenticated operations/fsinfo allows attacker-controlled backend instantiation and local command execution CVSS 4.0CRITICAL 9.2
TI-2026-29799 Rclone: Unauthenticated options/set allows runtime auth bypass, leading to sensitive operations and command execution CVSS 4.0CRITICAL 9.2
TI-2026-42602 Path traversal in rclone CVSS 3.1HIGH 8.8
TI-2026-39407 rclone: Unvalidated symlink target in local `--links` — arbitrary file write from an untrusted remote CVSS 3.1HIGH 8.8
TI-2026-80211 Authentication bypass in rclone serve webdav via OPTIONS requests CVSS 4.0MEDIUM 6.9

See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences