GO-2026-5016
Invoking memory leak when rejecting channels can lead to DoS in golang.org/x/crypto/ssh
At a glance
- Published
- Updated
- CVE
- CVE-2026-39827
- Aliases
- GHSA-qpw4-5x99-6vjp
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 packages
| Package | Versions |
|---|---|
| Go · golang.org/x/crypto | introduced 0, fixed 0.52.0 |
References
- https://go.dev/issue/35127 REPORT
- https://go.dev/cl/781320 FIX
- https://groups.google.com/g/golang-announce/c/a082jnz-LvI WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — Go Vulnerability Database |