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PatchSiren cyber security CVE debrief

CVE-2026-79777 rclone CVE debrief

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. This vulnerability may impact rclone deployments, particularly those with exposed RC API endpoints. Defenders should assess exposure and prioritize verification and remediation efforts to prevent potential information disclosure via RC API error responses. Further verification is required to determine the affected versions, exploitation scope, and remediation steps.

Vendor
rclone
Product
Unknown
CVSS
MEDIUM 5.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-25
Original CVE updated
2026-09-10
Advisory published
2026-08-25
Advisory updated
2026-09-10

Who should care

Defenders responsible for rclone deployments should assess exposure and prioritize verification and remediation efforts to prevent potential information disclosure via RC API error responses. This includes verifying rclone versions and restricting access to RC API endpoints. Operators, administrators, and security teams managing rclone deployments should review the vulnerability details and plan for remediation ormit

Why it matters

Defenders should prioritize verifying rclone versions and restricting access to RC API endpoints to prevent potential information disclosure. This vulnerability may impact rclone deployments, particularly those with exposed RC API endpoints. Further verification is required to determine the affected versions, exploitation scope, and remediation steps.

  • Potential information disclosure via RC API error responses
  • Verification of rclone versions and RC API endpoint access controls required

Technical summary

rclone before v1.75.0 includes full Go stack traces in RC API error responses when panics occur, potentially leaking internal file paths, module versions, goroutine states, and memory addresses. This vulnerability affects rclone deployments with exposed RC API endpoints. Defenders should prioritize verifying rclone versions and restricting access to RC API endpoints to prevent potential information disclosure. The CVE record and NVD entry provide limited information about the vulnerability.

Defensive priority

Defenders should prioritize verifying rclone versions and restricting access to RC API endpoints to prevent potential information disclosure.

Recommended defensive actions

  • Verify rclone version and upgrade to v1.75.0 or later
  • Restrict access to RC API endpoints
  • Monitor for potential panic triggers and error responses

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further verification is required to determine the affected versions, exploitation scope, and remediation steps.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-79777 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-79777

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-79777 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-79777

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.