GO-2026-4871

    Dashboard / Vulnerabilities / GO-2026-4871

    GO-2026-4871

    Published: 7 Apr 2026Last Modified: 13 May 2026

    Summary: Code execution vulnerability in SWIG code generation in cmd/go

    Details: SWIG file names containing 'cgo' and well-crafted payloads could lead to code smuggling and arbitrary code execution at build time due to trust layer bypass.

    References: https://go.dev/cl/763768, https://go.dev/issue/78335, https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU

    Affected packages

    Package

    Name: toolchain

    Purl: pkg:golang/toolchain

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.25.9

    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-2026-4871 | CVE-DB