CVE-2026-39830
Published:May 22, 2026
Updated:May 31, 2026
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.
Affected Packages
https://github.com/golang/crypto.git (GITHUB):
Affected version(s) >=v0.1.0 <v0.52.0Fix Suggestion:
Update to version v0.52.0golang.org/x/crypto (GO):
Affected version(s) >=v0.0.0-20120125194513-f61fbb80d2fc <v0.52.0Fix Suggestion:
Update to version v0.52.0Related Resources (5)
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Contact UsCVSS v4
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
HIGH
EPSS
Base Score:
0.06