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CVE-2026-39833

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-39833

Severity

9.1

Critical

CVSS V3

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Summary

Invoking key constraints not enforced in golang.org/x/crypto/ssh/agent

Description

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.

References

Affected packages

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