CVE-2026-103866

Full vulnerability record from the local CVENow database.

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.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

[email protected]

Published

2026-11-05 13:17:07.143000

Last modified

2026-11-05 13:17:07.143000

View original CVE JSON

{
  "id": "CVE-2026-103866",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-05T13:17:07.143",
  "lastModified": "2026-11-05T13:17:07.143",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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.\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."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Sling Engine",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "lessThan": "3.0.4",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-436"
        },
        {
          "lang": "en",
          "value": "CWE-444"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://lists.apache.org/thread.html/yoftbty2lc7kmtldmyvj7w0m0n1ncbf6",
      "source": "[email protected]"
    }
  ]
}