GO-2025-4134

    Dashboard / Vulnerabilities / GO-2025-4134

    GO-2025-4134

    Published: 19 Nov 2025Last Modified: 15 May 2026

    Summary: Unbounded memory consumption in golang.org/x/crypto/ssh

    Details: SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption.

    References: https://groups.google.com/g/golang-announce/c/w-oX3UxNcZA, https://go.dev/cl/721961, https://go.dev/issue/76363

    Affected packages

    Package

    Name: golang.org/x/crypto

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

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -0.45.0

    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-2025-4134 | CVE-DB