CVE-2026-39827
Published:May 22, 2026
Updated:May 27, 2026
An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for garbage collection.
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 (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Improper Enforcement of Message Integrity During Transmission in a Communication Channel
EPSS
Base Score:
0.04