CVE-2023-41034Network attack vector

File disclosure via unrestricted XML external entities

Published Aug 31, 2023 · Updated Sep 27, 2024

XXE in Eclipse Leshan before 1.5.0 and 2.0.0-M1 through 2.0.0-M12 allows remote attackers to read files via untrusted DDF XML. DDFFileParser creates a DocumentBuilderFactory without disabling DTDs, XInclude, or entity expansion, while DefaultDDFFileValidator permits external DTD and schema access. Exposure requires an application to pass attacker-controlled DDF model files or XML schemas into these APIs; trusted-only parsing is not exposed.

CVSS severity6.5
Medium
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XXE in Eclipse Leshan before 1.5.0 and 2.0.0-M1 through 2.0.0-M12 allows remote attackers to read files via untrusted DDF XML. DDFFileParser creates a DocumentBuilderFactory without disabling DTDs, XInclude, or entity expansion, while DefaultDDFFileValidator permits external DTD and schema access. Exposure requires an application to pass attacker-controlled DDF model files or XML schemas into these APIs; trusted-only parsing is not exposed.

The record

CVE
CVE-2023-41034
Published
Aug 31, 2023
Updated
Sep 27, 2024
Vendor
The Eclipse Foundation
Product
Eclipse Leshan
Classifications
CWE-611, CAPEC-221, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.5.0
  2. Affected versionversion=>= 2.0.0-M1, < 2.0.0-M13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Eclipse Foundation · Eclipse Leshanversion=< 1.5.0; version=>= 2.0.0-M1, < 2.0.0-M13

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.5GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
CAPEC-221Data Serialization External Entities Blowup
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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