CVE-2026-39833: Invoking key constraints not enforced in golang.org/x/crypto/ssh/agent
golang.org/x/crypto · golang.org/x/crypto/ssh/agent
Vendor fix available · Affected: golang.org/x/crypto/ssh/agent · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 41% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- golang.org/x/crypto · golang.org/x/crypto/ssh/agentbefore 0.52.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- golang.org/x/crypto
- Published
- May 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-39833 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.