CVE-2026-91999

Description

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.

CVSS Vector

References

• https://lists.apache.org/thread/xpcsdkr80ow9p13f7hp3ykrhzky9d4t4
• http://www.openwall.com/lists/oss-security/2026/09/23/14