{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-103863", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-10-01T11:44:49.432Z", "datePublished": "2026-11-05T12:31:45.446Z", "dateUpdated": "2026-11-05T12:31:45.446Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-11-05T12:31:45.446Z"}, "title": "Apache Sling Engine: Include-protection mitigations bypassable via uncovered response-wrapper paths", "problemTypes": [{"descriptions": [{"description": "CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')", "lang": "en", "cweId": "CWE-79", "type": "CWE"}]}, {"descriptions": [{"description": "CWE-693", "lang": "en", "cweId": "CWE-693", "type": "CWE"}]}], "source": {"defect": ["SLING-13345", "SLING-13350", "SLING-13351", "SLING-13352", "SLING-13357"], "discovery": "UNKNOWN"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache Sling Engine", "versions": [{"status": "affected", "version": "0", "lessThan": "3.0.4", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"value": "Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling Engine.\u00a0Content-Type, charset, and redirect changes from an included component evade the \u00a0protectheaders\u00a0/\u00a0checkcontenttype\u00a0 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.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Sling Engine.&nbsp;Content-Type, charset, and redirect changes from an included component evade the &nbsp;protectheaders&nbsp;/&nbsp;checkcontenttype&nbsp; enforcement through setHeader(), repeated calls to setContentType(), the charset APIs, Servlet 6.1 redirect overloads, and stale config - enabling stored XSS despite enabled protections.</p><p>This issue affects Apache Sling Engine before 3.0.4.</p><p>Users are recommended to upgrade to version 3.0.4, which fixes the issue.</p>"}]}], "references": [{"url": "https://lists.apache.org/thread.html/rll7kjtbpj2lvh4nzmrw5sdmqww64ldg", "tags": ["vendor-advisory"]}], "metrics": [{"other": {"type": "Textual description of severity", "content": {"text": "low"}}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "credits": [{"lang": "en", "value": "The Apache Software Foundation", "type": "finder"}, {"lang": "en", "value": "Claude Code", "type": "tool"}], "x_generator": {"engine": "Vulnogram 1.0.3"}}}}

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