CVE-2026-39827

6.5 MEDIUM
Published: May 22, 2026 Modified: May 26, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
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

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.5 / 10.0
EPSS (Exploit Probability)
0.2%
10th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

golang