GO-2026-5015

    Dashboard / Vulnerabilities / GO-2026-5015

    GO-2026-5015

    Published: 22 May 2026Last Modified: 12 Aug 2026

    Summary: Invoking server panic during CheckHostKey/Authenticate in golang.org/x/crypto/ssh

    Details: SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.

    References: https://go.dev/issue/79563, https://groups.google.com/g/golang-announce/c/a082jnz-LvI, https://go.dev/cl/781660

    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
    GO-2026-5015 | CVE-DB