CVSS 3.1
9.1 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NCVE-2026-39833
Critical (9.1) in golang crypto. EPSS 0.5% chance of exploitation in the next 30 days. Fixed in golang.org/x/crypto 0.52.0.
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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 40% of CVEs (scores of 2026-10-31)
- CWE
- CWE-862
- Published
- Modified
- Record from
- the NVD, synced
Affected
- golang:crypto
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-jppx-rxg9-jmrx | Go | golang.org/x/crypto | <0.52.0 | 0.52.0 |
| GO-2026-5005 | Go | golang.org/x/crypto | <0.52.0 | 0.52.0 |