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CVE-2026-85061: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in maplibre maplibre-gl-js

0
Critical
VulnerabilityCVE-2026-85061cvecve-2026-85061cwe-79
Published: 09/03/2026 (09/03/2026, 20:18:50 UTC)
Source: CVE Database V5
Vendor/Project: maplibre
Product: maplibre-gl-js

Description

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.

CVSS v3.1

Score 10.0critical

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Technical Details

Data Version
5.2
Assigner Short Name
GitHub_M
Date Reserved
2026-09-02T21:21:01.774Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
null

Threat ID: 6a99d71facd9273b496a6d0b

Added to database: 09/03/2026, 20:22:55 UTC

Last updated: 09/03/2026, 21:07:11 UTC

Views: 5

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