CVE-2026-39827
Last modified
CVE-2026-39827 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.20% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Golang | Crypto | < 0.52.0 |
References
- https://go.dev/cl/781320Issue Tracking
- https://go.dev/issue/35127Issue Tracking
- https://pkg.go.dev/vuln/GO-2026-5016Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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