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Vulnerabilities

Vulnerability · CVE-2026-121652

CVE-2026-121652 - Stored cross-site scripting (XSS) in AWS Amplify maplibre-gl-js-amplify popup rendering

Published Nov 3, 2026 · Amazon Web Services

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-121652. EPSS is 0.26%. Act only if a listed version of Amazon Web Services is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.26%
Remediation
Version ranges on file
Affected products
stated Amazon Web Services

Bulletin ID: 2026-167-AWS Publication Date: 11/03/2026 10:30 AM PST Description: maplibre-gl-js-amplify is an open-source AWS Amplify library that integrates Amazon Location Service with MapLibre GL JS to render maps, markers, popups, and geofencing controls in web applications. We identified CVE-2026-121652, where a stored cross-site scripting (XSS) issue in the library's popup and geofence-control rendering. Impacted versions: Please refer to the article below for the most up-to-date and complete information related t

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated Amazon Web Services<= 4.0.2

How to fix CVE-2026-121652

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-121652. EPSS is 0.26%. Act only if a listed version of Amazon Web Services is installed.

Which versions are affected?

Compare what you have installed with Amazon Web Services <= 4.0.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.26%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 3, 2026 · AWS Security Bulletins

    Detected

    Bulletin ID: 2026-167-AWS Publication Date: 11/03/2026 10:30 AM PST Description: maplibre-gl-js-amplify is an open-source AWS Amplify library that integrates Amazon Location Service with MapLibre GL JS to render maps, markers, popups, and geofencing controls in web applications. We identified CVE-2026-121652, where a stored cross-site scripting (XSS) issue in the library's popup and geofence-contr

Sources

  • AWS Security BulletinsVendor advisoryCVE-2026-121652

    Bulletin ID: 2026-167-AWS Publication Date: 11/03/2026 10:30 AM PST Description: maplibre-gl-js-amplify is an open-source AWS Amplify library that integrates Amazon Location Service with MapLibre GL JS to render maps, markers, popups, and geofencing controls in web applications.

    aws.amazon.com
  • CVE.orgVulnerability recordCVE-2026-121652

    Official CVE identifier

    cve.org

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • AWS Security BulletinsNov 5, 2026
  • CVE.orgNov 4, 2026