GO-2026-6218

    Dashboard / Vulnerabilities / GO-2026-6218

    GO-2026-6218

    Published: 13 Aug 2026Last Modified: 11 Sept 2026

    Summary: Avoid quadratic complexity in resolvePath in net/url

    Details: Previously, resolving relative paths containing parent directory ('..') segments performed string conversions and buffer rewrites on each step, resulting in quadratic time complexity and high memory allocation overhead. Now, path resolution operates on a byte buffer using index-based backtracking for '..' segments, eliminating the quadratic time complexity and significantly reducing memory allocations.

    References: https://go.dev/cl/803681, https://go.dev/issue/80494, https://groups.google.com/g/golang-announce/c/94pEornpRlI

    Affected packages

    Package

    Name: stdlib

    Purl: pkg:golang/stdlib

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.25.13

    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