{"id":"CVE-2026-103863","title":"Apache Sling Engine: Include-protection mitigations bypassable via uncovered response-wrapper paths","summary":"Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling Engine. Content-Type, charset, and redirect changes from an included component evade the  protectheaders / checkcontenttyp…","severity":"none","cwe":["CWE-79","CWE-693"],"vendor":"Apache Software Foundation","product":"Apache Sling Engine","affected":["apache_sling_engine < 3.0.4"],"published":"2026-11-05","updated":"2026-11-05","sourceUpdated":"2026-11-05T22:05:41.569Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-103863","references":[{"url":"https://lists.apache.org/thread.html/rll7kjtbpj2lvh4nzmrw5sdmqww64ldg"}],"tags":["cve.org"],"ingestedAt":"2026-11-05T21:36:00.837Z","slug":"CVE-2026-103863","body":"## Overview\n\nImproper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling Engine. Content-Type, charset, and redirect changes from an included component evade the  protectheaders / checkcontenttype  enforcement through setHeader(), repeated calls to setContentType(), the charset APIs, Servlet 6.1 redirect overloads, and stale config - enabling stored XSS despite enabled protections.\n\n\n\nThis issue affects Apache Sling Engine before 3.0.4.\n\n\n\nUsers are recommended to upgrade to version 3.0.4, which fixes the issue.\n\n## Affected\n\n- `apache_sling_engine < 3.0.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}