CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2026-39827
Medium (6.5) in golang crypto. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in golang.org/x/crypto 0.52.0.
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.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-31)
- CWE
- CWE-924
- Published
- Modified
- Record from
- the NVD, synced
Affected
- golang:crypto
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-qpw4-5x99-6vjp | Go | golang.org/x/crypto | <0.52.0 | 0.52.0 |
| GO-2026-5016 | Go | golang.org/x/crypto | <0.52.0 | 0.52.0 |