Information disclosure in Rclone
CVE-2026-79776
rclone before 1.75.0 mounts the pprof debug handler as its own router route, bypassing the fail-closed authentication rule in the main handler. Attackers can access the /debug/pprof/cmdline endpoint unauthenticated to retrieve the full process argv including backend credentials.
Vulnerability class: Information Disclosure
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-79776?
- CVE-2026-79776 is a medium-severity vulnerability in Rclone, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-08-25.
- How severe is CVE-2026-79776?
- Medium severity. CVSS v3 base score is 5.3 out of 10.