{"id":"CVE-2026-103866","title":"Apache Sling Engine: Hand-rolled parameter parser diverges from RFC/container parsing, enabling smuggling","summary":"Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling') vulnerability in Apache Sling Engine. The engine's query/form parser accepts non-standard percent-escapes, wrong charsets, and continues request processing …","severity":"none","cwe":["CWE-436","CWE-444"],"vendor":"Apache Software Foundation","product":"Apache Sling Engine","affected":["apache_sling_engine < 3.0.4"],"published":"2026-11-05","updated":"2026-11-05","sourceUpdated":"2026-11-05T22:05:44.167Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-103866","references":[{"url":"https://lists.apache.org/thread.html/yoftbty2lc7kmtldmyvj7w0m0n1ncbf6"}],"tags":["cve.org"],"ingestedAt":"2026-11-05T21:36:00.838Z","slug":"CVE-2026-103866","body":"## Overview\n\nInconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling') vulnerability in Apache Sling Engine. The 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.\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":[]}