Vulnerability-Lookup

GHSA-FH7F-X3GJ-J2VV

Vulnerability from github – Published: 2026-11-05 15:32 – Updated: 2026-11-06 00:32

Details

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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  "aliases": [
    "CVE-2026-103866"
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    "cwe_ids": [
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-11-05T13:17:07Z",
    "severity": null
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  "details": "Inconsistent interpretation of HTTP requests (\u0027HTTP Request/Response smuggling\u0027) vulnerability in Apache Sling Engine.\u00a0The engine\u0027s 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": "GHSA-fh7f-x3gj-j2vv",
  "modified": "2026-11-06T00:32:41Z",
  "published": "2026-11-05T15:32:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-103866"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/yoftbty2lc7kmtldmyvj7w0m0n1ncbf6"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/11/05/8"
    }
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  "schema_version": "1.4.0",
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}

CVE-2026-103866 (GCVE-0-2026-103866)

Vulnerability from cvelistv5 – Published: 2026-11-05 12:33 – Updated: 2026-11-05 22:05

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 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

No CVSS data available.

CWE

CWE-436
CWE-444 - Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling')

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 1178 records in the last 180 days details

References

2 references

URL	Tags
https://lists.apache.org/thread.html/yoftbty2lc7k…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/11/05/8

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Sling Engine	Affected: 0 , < 3.0.4 (semver)

Credits

The Apache Software Foundation Claude Code

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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