CVE-2026-85061Public exploitNetwork attack vector

Cross-site scripting via skipped adjacent attributes

Published Sep 3, 2026 · Updated Sep 4, 2026

Cross-site scripting in MapLibre GL JS before 6.4.1 allows remote attackers to execute script through crafted map attribution HTML. DOM.sanitize iterates a live NamedNodeMap while removing dangerous attributes, so index shifts skip an adjacent event handler before the attribution control assigns the result to innerHTML. Exploitation requires an application to render attacker-controlled third-party style attribution or custom attribution, exposing the victim browser context to script execution.

CVSS severity10.0
Critical
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cross-site scripting in MapLibre GL JS before 6.4.1 allows remote attackers to execute script through crafted map attribution HTML. DOM.sanitize iterates a live NamedNodeMap while removing dangerous attributes, so index shifts skip an adjacent event handler before the attribution control assigns the result to innerHTML. Exploitation requires an application to render attacker-controlled third-party style attribution or custom attribution, exposing the victim browser context to script execution.

The record

CVE
CVE-2026-85061
Published
Sep 3, 2026
Updated
Sep 4, 2026
Vendor
MapLibre
Product
MapLibre GL JS
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 6.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MapLibre · MapLibre GL JSversion=< 6.4.1

Published CVSS scores

10.0GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo