CVE
CVE-2026-39830
Invoking client can cause server deadlock on unexpected responses in golang.org/x/crypto/ssh
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.
Package Versions Affected
Package Version
patch Availability
No items found.
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CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
C
H
U
0
-
C
H
U
-
Related Resources
No items found.
References
https://go.dev/issue/79564, https://groups.google.com/g/golang-announce/c/a082jnz-LvI, https://go.dev/cl/781640, https://go.dev/cl/781664
Basic Information
Ecosystem
