CVE-2026-39827
medium
CVSS v3
6.5
CVSS v2
—
VIR risk
6.5
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.
Predictions
Exploit likelihood
75%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2026-39827.html
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-39827
Vendor advisory: security@golang.org — https://pkg.go.dev/vuln/GO-2026-5016
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | affected | |
| debian | bullseye | affected | |
| debian | forky | affected | |
| debian | sid | fixed | 1:0.52.0-1 |
| debian | trixie | affected | |
| sles | affected | |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | golang.org/x/crypto | <0.52.0 | 0.52.0 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| golang | crypto | {"endExcluding":"0.52.0"} | 0.52.0 |
References
CWEs
CWE-924
Verify integrity in audit chain (admin only). AS-IS.