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 on such errors.



This issue affects Apache Sling Engine: before 3.0.4.



Users are recommended to upgrade to version 3.0.4, which fixes the issue.

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History

Thu, 05 Nov 2026 12:45:00 +0000

Type Values Removed Values Added
Description 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 on such errors. This issue affects Apache Sling Engine: before 3.0.4. Users are recommended to upgrade to version 3.0.4, which fixes the issue.
Title Apache Sling Engine: Hand-rolled parameter parser diverges from RFC/container parsing, enabling smuggling
Weaknesses CWE-436
CWE-444
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-11-05T12:33:00.994Z

Reserved: 2026-10-01T11:47:21.504Z

Link: CVE-2026-103866

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses