Vulnerability Description
A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop. The blocked goroutine could not be released by calling Close(), resulting in a resource leak per connection. Unsolicited global responses are now discarded.
References
- https://go.dev/cl/781640
- https://go.dev/cl/781664
- https://go.dev/issue/79564
- https://groups.google.com/g/golang-announce/c/a082jnz-LvI
- https://pkg.go.dev/vuln/GO-2026-5017
FAQ
What is CVE-2026-39830?
CVE-2026-39830 is a documented vulnerability. A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop. The blocked goroutine could not be released by calling Close(), re...
How severe is CVE-2026-39830?
CVSS scoring is not yet available for CVE-2026-39830. Check NVD for updates.
Is there a patch for CVE-2026-39830?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.