CVE-2026-39830

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.

Score
CVSS 3.1 9.1 Critical
Status
Modified - security@golang.org
Published
2026-05-22
Last modified
2026-09-18
Weaknesses
CWE-119, CWE-772

Affected products

References

 
 
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