CVE-2026-91928: Apache Sling XSS: Sanitizer bypass, uncontrolled resource consumption and failure pf protection mechanisms

Published Sep 23, 2026
·
Updated

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling XSS.

This issue affects Apache Sling XSS: before 2.4.12.

Users are recommended to upgrade to version 2.4.12, which fixes the issue.

Affected Software

1 affected component
Apache Sling XSS<2.4.12

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Apache Sling XSS to a version that resolves this vulnerability.

    Fixed in 2.4.12

Event History

Sep 23, 2026
CVE Published
via MITRE·09:37 AM
Data Sourced
via MITRE·09:37 AM
DescriptionWeakness
Data Sourced
via NVD·10:17 AM
DescriptionSeverityWeakness

Frequently Asked Questions

1

Which Apache Sling XSS versions are affected?

Apache Sling XSS versions before 2.4.12 are affected. Version 2.4.12 fixes the issue.

2

What should teams do to remediate this issue?

Upgrade Apache Sling XSS to version 2.4.12.

Company

Resources

Contact

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