GO-2026-4601

    Dashboard / Vulnerabilities / GO-2026-4601

    GO-2026-4601

    Published: 6 Mar 2026Last Modified: 11 Sept 2026

    Summary: Incorrect parsing of IPv6 host literals in net/url

    Details: url.Parse insufficiently validated the host/authority component and accepted some invalid URLs.

    References: https://go.dev/cl/752180, https://go.dev/issue/77578, https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk

    Affected packages

    Package

    Name: stdlib

    Purl: pkg:golang/stdlib

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.25.8

    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