GO-2025-4135

    Dashboard / Vulnerabilities / GO-2025-4135

    GO-2025-4135

    Published: 19 Nov 2025Last Modified: 15 May 2026

    Summary: Malformed constraint may cause denial of service in golang.org/x/crypto/ssh/agent

    Details: SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read.

    References: https://groups.google.com/g/golang-announce/c/w-oX3UxNcZA, https://go.dev/cl/721960, https://go.dev/issue/76364

    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-2025-4135 | CVE-DB