CVE-2026-39833CWE-862broken-access-control

CVE-2026-39833

Critical · published May 22, 2026

CVSS v3.1
9.1
EPSS
0%
Percentile
41.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00487 · 41.0th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-05-22T08:16Z
Affected products (1)
ProductVersionsFixed in
golang/crypto< 0.52.00.52.0
References (4)
https://go.dev/cl/778642 · [email protected]https://go.dev/issue/79436 · [email protected]https://groups.google.com/g/golang-announce/c/a082jnz-LvI · [email protected]https://pkg.go.dev/vuln/GO-2026-5005 · [email protected]
EPSS history
Timeline
  • 22 MAY 02:31Z
    Invoking key constraints not enforced in golang.org/x/crypto/ssh/agent
    cvelistv5