NULL pointer dereference in rclone - #VU140652
Published: August 1, 2026
Vulnerability identifier: #VU140652
CSH Severity: Medium
CVSS v4: 5.6 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to a null pointer dereference in the getTusLocationOrRetry function in the Infinite Scale TUS creation path when handling a transport failure before an HTTP response is received. A remote attacker can cause the configured endpoint to reset the connection during a TUS creation request to cause a denial of service.
User interaction is required to initiate the upload, and process-wide impact is strongest in long-lived VFS mounts or concurrent or multi-remote CLI processes where the panic occurs in an unrecovered goroutine.
Affected software
rclone
Remediation
Install security update from vendor's website.
rclone - update to 1.75.0