CVE-2026-39827

Published: May 22, 2026Modified: Jul 23, 2026

6.5

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 2.8 / Impact: 3.6

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

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 (1)

Products: Golang: Crypto

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Golang Crypto	Before 0.52.0

Related CWEs

Improper Enforcement of Message Integrity During Transmission in a Communication Channel

The product establishes a communication channel with an endpoint and receives a message from that endpoint, but it does not sufficiently ensure that the message was not modified during transmission.

References (4)

https://go.dev/cl/781320

Source: security@golang.org

Issue Tracking

https://go.dev/issue/35127

Source: security@golang.org

Issue Tracking

https://groups.google.com/g/golang-announce/c/a082jnz-LvI

Source: security@golang.org

Mailing List

https://pkg.go.dev/vuln/GO-2026-5016

Source: security@golang.org

Vendor Advisory

Timeline

No history available yet.