GO-2026-5021

    Dashboard / Vulnerabilities / GO-2026-5021

    GO-2026-5021

    Published: 22 May 2026Last Modified: 14 Aug 2026

    Summary: Invoking auth bypass via unenforced @revoked status in golang.org/x/crypto/ssh/knownhosts

    Details: Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.

    References: https://go.dev/issue/79568, https://go.dev/cl/781220, https://groups.google.com/g/golang-announce/c/a082jnz-LvI

    Affected packages

    Package

    Name: golang.org/x/crypto

    Purl: pkg:golang/golang.org/x/crypto

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -0.52.0

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High