rclone before v1.75.0 includes full Go stack traces in RC API error responses when panics occur. (CVE-2026-79777)
Description
rclone versions before v1.75.0 expose full Go stack traces in RC API error responses when panics occur. This can leak sensitive internal information such as file paths, module versions, goroutine states, and memory addresses. The vulnerability has a medium severity with a CVSS score of 2.7.
CVSS v3.1
Score 2.7low
Affected software
pkg:deb/ubuntu/rclone?arch=source&distro=bionicpkg:deb/ubuntu/rclone?arch=source&distro=esm-apps/focalpkg:deb/ubuntu/rclone?arch=source&distro=esm-apps/jammypkg:deb/ubuntu/rclone?arch=source&distro=esm-apps/noblepkg:deb/ubuntu/rclone?arch=source&distro=stonkingpkg:deb/ubuntu/rclone?arch=source&distro=esm-apps/resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
rclone before version 1.75.0 includes full Go stack traces in remote control (RC) API error responses when panics occur. Attackers able to trigger such panics can obtain detailed internal information including file paths, module versions, goroutine states, and memory addresses. This information disclosure vulnerability has a CVSS 3.1 base score of 2.7, indicating low impact on confidentiality and no impact on integrity or availability. The affected versions are numerous specific builds of rclone prior to 1.75.0 as enumerated in the affectedVersions list.
Potential Impact
The vulnerability allows an attacker with the ability to trigger panics in the RC API to obtain internal diagnostic information such as file paths and memory addresses. This information disclosure is limited in impact (CVSS 2.7) and does not affect integrity or availability. There are no known exploits in the wild. The leak could potentially aid further reconnaissance but does not directly compromise system control or data integrity.
Mitigation Recommendations
A fix is available in rclone version 1.75.0. Users should upgrade to version 1.75.0 or later to prevent leakage of Go stack traces in RC API error responses. No other mitigation is indicated or required according to the available data.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-79777
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:Pro:22.04:LTS","Ubuntu:Pro:24.04:LTS","Ubuntu:26.10","Ubuntu:Pro:26.04:LTS"]
- Cvss Version
- 3.1
Threat ID: 6ad3f56c2cdf04f6566620fd
Added to database: 10/17/2026, 22:23:40 UTC
Last enriched: 10/17/2026, 23:37:10 UTC
Last updated: 10/17/2026, 23:37:10 UTC
Views: 2
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