GO-2026-4868

    Dashboard / Vulnerabilities / GO-2026-4868

    GO-2026-4868

    Published: 7 Apr 2026Last Modified: 30 Jul 2026

    Summary: Missing bound checks can lead to memory corruption in safe Go in cmd/compile

    Details: Arithmetic over induction variables in loops were not correctly checked for underflow or overflow. As a result, the compiler would allow for invalid indexing to occur at runtime, potentially leading to memory corruption.

    References: https://go.dev/cl/763765, https://go.dev/issue/78333, 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