GO-2026-6091

    Dashboard / Vulnerabilities / GO-2026-6091

    GO-2026-6091

    Published: 13 Aug 2026Last Modified: 11 Sept 2026

    Summary: Fix Javascript regexp context tracking in html/template

    Details: Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.

    References: https://go.dev/issue/80435, https://go.dev/cl/807100, 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