EUVD-2026-65535
GHSA-7fxp-9qgr-6fxw
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable RC API requires high-privilege credentials (PR:H); only low confidentiality impact from leaked stack traces and paths; no integrity or availability impact.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
3DescriptionCVE.org
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.
AnalysisAI
Stack trace disclosure in rclone's RC API exposes internal file paths, Go module versions, goroutine states, and memory addresses to authenticated API callers who intentionally trigger panics. All rclone versions through v1.74.4 with the RC API enabled are affected; the vulnerability is rooted in the panic recovery handler at fs/rc/jobs/job.go including raw debug.Stack() output directly in HTTP JSON error responses. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The RC API must be explicitly enabled via the --rc flag or equivalent configuration - it is not active in default rclone deployments, which substantially limits the attack surface. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 5.1 with vector AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N accurately characterizes this as a bounded, network-reachable information disclosure requiring high privileges. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated RC API user sends a POST to /config/setpath with a non-INI file such as /etc/hostname as the path, then calls /config/dump to trigger a panic in the config parser. The JSON error response body contains the full Go stack trace, including absolute source file paths, third-party dependency versions, goroutine state, memory addresses defeating ASLR, and the first line of the targeted file. … |
| Remediation | Upgrade to rclone v1.75.0, which resolves the issue by stripping debug.Stack() from HTTP error responses and logging stack traces server-side only; the specific fix is at commit ff43a1e3ae17627c80e523a0ca7445f96516d199. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-209 – Error Message Information Leak
View allSame technique Information Disclosure
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External POC / Exploit Code
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