PT-2026-42712 · Go+1 · Golang.Org/X/Crypto+1

Published 2026-05-22 · Updated 2026-05-22 · CVE-2026-39833

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)

Description The in-memory keyring returned by the NewKeyring() function silently accepted keys with the ConfirmBeforeUse constraint but failed to enforce it. This allowed keys to sign without the required confirmation prompt, providing no indication to the caller that the constraint was inactive.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2026-39833

GO-2026-5005

Affected Products

Golang.Org/X/Crypto

Golang.Org/X/Crypto/Ssh/Agent

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-39833 · Security Note
• https://osv.dev/vulnerability/GO-2026-5005 · Vendor Advisory
• https://groups.google.com/g/golang-announce/c/a082jnz-LvI · Note
• https://pkg.go.dev/vuln/GO-2026-5005 · Note
• https://go.dev/cl/778640 · Note
• https://go.dev/issue/79436 · Note
• https://go.dev/cl/778641 · Note