CVE-2026-39833

golang.org/x/crypto/ssh/agent

Medium priority: severe, but no known exploitation

The in-memory keyring returned by NewKeyring() silently accepted keys with the ConfirmBeforeUse constraint but never enforced it. The key would sign without any confirmation prompt, with no indication to the caller that the constraint was not in effect. NewKeyring() now returns an error when unsupported constraints are requested.

In the news

• Múltiples vulnerabilidades en productos de Splunk · INCIBE-CERT