CVE-2026-39833

9.1 CRITICAL

The in-memory keyring returned by NewKeyring() silently accepted keys with the ConfirmBeforeUse constraint but never enforced it

Published: 2026-05-22 · Last updated: 2026-05-28

Severity and scoring

CVSS: 9.1 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE: CWE-862

Affected products

Vendor	Product
golang	crypto

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-39833
[Other]https://go.dev/cl/778640
[Other]https://go.dev/cl/778641
[Other]https://go.dev/issue/79436
[Other]https://groups.google.com/g/golang-announce/c/a082jnz-LvI
[Vendor advisory]https://pkg.go.dev/vuln/GO-2026-5005

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