CVE-2026-39833

critical · 9.1

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.

9.1

CVSS

0.4%

EPSS (exploit prob.)

35th

EPSS percentile

2026-05-22

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

CWE-862

Affected products

Vendor	Product	Affected versions
golang	crypto	< 0.52.0

Check a specific version with /api/v1/cve/match.

References

https://go.dev/cl/778642
https://go.dev/issue/79436
https://groups.google.com/g/golang-announce/c/a082jnz-LvI
https://pkg.go.dev/vuln/GO-2026-5005

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-39833