{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-103866", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-10-01T11:47:21.504Z", "datePublished": "2026-11-05T12:33:00.994Z", "dateUpdated": "2026-11-05T12:33:00.994Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-11-05T12:33:00.994Z"}, "title": "Apache Sling Engine: Hand-rolled parameter parser diverges from RFC/container parsing, enabling smuggling", "problemTypes": [{"descriptions": [{"description": "CWE-436", "lang": "en", "cweId": "CWE-436", "type": "CWE"}]}, {"descriptions": [{"description": "CWE-444 Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling')", "lang": "en", "cweId": "CWE-444", "type": "CWE"}]}], "source": {"defect": ["SLING-13362", "SLING-13364", "SLING-13365"], "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": "Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling') vulnerability in Apache Sling Engine.\u00a0The engine's query/form parser accepts non-standard percent-escapes, wrong charsets, and continues request processing on such errors.\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>Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling') vulnerability in Apache Sling Engine.&nbsp;The engine's query/form parser accepts non-standard percent-escapes, wrong charsets, and continues request processing on such errors.</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/yoftbty2lc7kmtldmyvj7w0m0n1ncbf6", "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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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Apache Sling Engine", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "3.0.4", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@apache.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling') vulnerability in Apache Sling Engine.\u00a0The engine's query/form parser accepts non-standard percent-escapes, wrong charsets, and continues request processing on such errors.\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."}], "id": "CVE-2026-103866", "lastModified": "2026-11-05T13:17:07.143", "metrics": {}, "published": "2026-11-05T13:17:07.143", "references": [{"source": "security@apache.org", "url": "https://lists.apache.org/thread.html/yoftbty2lc7kmtldmyvj7w0m0n1ncbf6"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-436"}, {"lang": "en", "value": "CWE-444"}], "source": "security@apache.org", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,3.0.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Apache Sling Engine", "source": "cna", "vendor": "Apache Software Foundation"}, "product": "apache_sling_engine", "vendor": "apache"}], "created": "2026-11-05T13:45:12.168082+00:00", "updated": "2026-11-05T13:45:12.168129+00:00", "vendors": ["apache", "apache$PRODUCT$apache_sling_engine"]}