CVE-2026-85061

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    CVE-2026-85061

    Published: 3 Sept 2026Last Modified: 11 Sept 2026

    Summary: MapLibre GL JS: XSS Sanitizer Bypass in DOM.sanitize() via Live NamedNodeMap Removal Skip

    Details: MapLibre GL JS is an interactive vector tile map library for web browsers. Prior to 6.4.1, DOM.sanitize() in src/util/dom.ts iterates elem.attributes as a live NamedNodeMap while removeAttributes() removes attributes from the same collection, shifting indexes and skipping an adjacent dangerous attribute. An attacker who controls untrusted third-party style attribution strings or user-supplied custom attributions can supply consecutive dangerous attributes, causing an attribute such as onload or ontoggle to survive sanitization and execute when the attribution control inserts the content into innerHTML. A victim must render the affected map content for the script to execute. This issue is fixed in version 6.4.1.

    References: https://github.com/maplibre/maplibre-gl-js/releases/tag/v6.4.1, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85061.json, https://github.com/maplibre/maplibre-gl-js/security/advisories/GHSA-jrc7-96c5-q579, https://nvd.nist.gov/vuln/detail/CVE-2026-85061, https://github.com/maplibre/maplibre-gl-js/commit/1da69f3cd913a39fa948708e01478663bf48bc27, https://github.com/maplibre/maplibre-gl-js/pull/8189

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -1da69f3cd913a39fa948708e01478663bf48bc27

    Affected versions

    v6.4.0

    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
    CVE-2026-85061 | CVE-DB