Low [CVE-2026-79777] Information Disclosure via RC API error responses
This low-severity Red Hat Linux advisory covers CVE-2026-79777 affecting Cryostat 4, Red Hat Advanced Cluster Management for Kubernetes 2.
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Summary
rclone before v1.75.0 includes full Go stack traces in RC API error responses when panics occur. Attackers can trigger panics to leak internal file paths, module versions, goroutine states, and memory addresses.
A flaw was found in rclone. Attackers can exploit this vulnerability by triggering panics in the RC API error responses.
The Remote Control (RC) API can include sensitive information such as internal paths, configuration details, or error context in error responses. An authenticated administrator with access to the RC API can observe this information, which may aid in further attacks against the system.
Red Hat severity: Low — CVSS 2.7 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-209.
Affected Red Hat products: Cryostat 4; Red Hat Advanced Cluster Management for Kubernetes 2. Red Hat does not currently list a fixing RHSA for this CVE.
- < 75.0
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- Restrict access to the rclone RC API to trusted networks and administrators only. Use the --rc-allow-origin and --rc-user/--rc-pass flags to enforce authentication. Where possible, disable the RC API entirely if not required for operations.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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