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.
Published:May 22, 2026
Last Modified:Sep 10, 2026
EPS:May 22, 2026
EPSS Score:0.00621
CVSS Score:9.1
Affected Products
Vendor
Product
Action
Vendor
Golang
Product
Crypto
Golang
Crypto
Vendor
Golang
Product
Ssh
Golang
Ssh
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
