Vulnerability in Rclone

CVE-2026-79778

rclone before v1.75.0 contains a denial of service vulnerability in the WebDAV TUS creation handler that dereferences a nil response before checking for transport errors. A malicious or compromised configured endpoint can reset connections during TUS uploads to trigger a panic that terminates unrecovered goroutines and halts unrelated work in long-lived processes.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-79778?
CVE-2026-79778 is a medium-severity vulnerability in Rclone, classified under CWE-248. CVSS score: 5.3/10. Published 2026-08-25.
How severe is CVE-2026-79778?
Medium severity. CVSS v3 base score is 5.3 out of 10.