Description
Improper restriction of recursive entity references in DTDs ('XML entity expansion') 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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache Sling XSS | < 2.4.12 | 2.4.12 |
Advisories 1
- WID-SEC-2026-3526 Apache Sling: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 23, 2026
References
- https://lists.apache.org/thread/m52jll26vc8g5jokbg0xt062o09wkghr vendor-advisory