Common Weakness Enumeration

CWE-611

Allowed

Improper Restriction of XML External Entity Reference

Abstraction: Base · Status: Draft

The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

558 vulnerabilities reference this CWE, most recent first.

CVE-2026-65432 (GCVE-0-2026-65432)

Vulnerability from cvelistv5 – Published: 2026-08-06 10:26 – Updated: 2026-08-07 00:01
VLAI
Title
Apache CXF: XXE via WSDL/XSD import parsing
Summary
Apache CXF reads a top-level WSDL through its hardened StaxUtils path, which disables XML DTDs and external entities. However, any <wsdl:import> or <xsd:import> referenced from that top-level WSDL is handed off to WSDL4J, which does not disable DOCTYPE declarations or external entities. As a result, the protections applied to the top-level document do not extend to imported documents, leaving imported WSDL/XSD content vulnerable to XML External Entity (XXE) attacks. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 15:14 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
apache CNA
Impacted products
Vendor Product Version
Apache Software Foundation Apache CXF Affected: 4.2.0 , < 4.2.3 (semver)
Affected: 4.0.0 , < 4.1.8 (semver)
Affected: 0 , < 3.6.12 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-61741 (GCVE-0-2026-61741)

Vulnerability from cvelistv5 – Published: 2026-09-24 17:48 – Updated: 2026-09-29 03:02
VLAI
Title
http4s-scala-xml has an XML External Entity (XXE) processing issue
Summary
http4s-scala-xml provides `EntityDecoder[F, scala.xml.Elem]` instances that parse XML message bodies. Prior to versions 0.24.1 and 1.0.0-M39, these decoders used a `javax.xml.parsers.SAXParserFactory` obtained from `SAXParserFactory.newInstance` without any security configuration. With the JDK's default settings, the parser resolves DOCTYPE declarations, external general and parameter entities, and external DTDs.An application that uses these decoders to parse untrusted XML is vulnerable to XML External Entity (XXE) attacks. An attacker can craft a request that discloses local files readable by the service process, performs server-side request forgery (SSRF) against internal network resources, and/or causes denial of service through entity expansion. Versions 0.24.1 and 1.0.0-M39 fix the issue.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 03:01 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
http4s http4s-scala-xml Affected: < 0.24.1
Affected: >= 1.0.0-M1, < 1.0.0-M39
Create a notification for this product.
Show details on NVD website

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CVE-2026-61586 (GCVE-0-2026-61586)

Vulnerability from cvelistv5 – Published: 2026-10-30 18:59 – Updated: 2026-11-05 02:30
VLAI
Title
Copernik XML Factory: Improper restriction of XInclude resource resolution in Copernik XML Factory (stock JDK provider)
Summary
Copernik XML Factory provides secure-by-default JAXP factory creation for Java. Prior to 0.1.2, Copernik XML Factory does not block XInclude resource resolution on the stock JDK provider after an application enables XInclude on a factory returned by `XmlFactories.newDocumentBuilderFactory()` or `XmlFactories.newSAXParserFactory()`, or on an `XMLReader` passed through `XmlFactories.harden()`. An application parsing untrusted XML can resolve attacker-controlled `xi:include` references to disclose local files or, through `http` references, reach internal network endpoints by server-side request forgery. Exploitation requires use of one of those factory/hardening APIs, the stock JDK provider with Apache Xerces absent from the classpath, explicit `setXIncludeAware(true)` or the equivalent reader feature, and XML from an untrusted source. The Xerces provider selected when Xerces is present and the Android provider are unaffected. This issue is fixed in version 0.1.2.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 02:30 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
GitHub_M CNA
Impacted products
Show details on NVD website

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CVE-2026-61570 (GCVE-0-2026-61570)

Vulnerability from cvelistv5 – Published: 2026-09-22 19:56 – Updated: 2026-09-24 15:19
VLAI
Title
MPXJ: XXE Vulnerability in MerlinReader
Summary
MPXJ is an open source library to read and write project plans from a variety of file formats and databases. From 5.5.5 until 16.4.1, MerlinReader creates a DocumentBuilder with default settings while parsing XML from the ZTIMEINTERVALS column of a Merlin project SQLite database, leaving doctype declarations and external entities enabled. A crafted database can cause the parser to read an arbitrary local file, although MPXJ's subsequent handling of the parsed XML makes disclosure of the file contents unlikely. This issue is fixed in version 16.4.1.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 15:19 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
GitHub_M CNA
Impacted products
Vendor Product Version
joniles mpxj Affected: >= 5.5.5, < 16.4.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-58248 (GCVE-0-2026-58248)

Vulnerability from cvelistv5 – Published: 2026-08-11 00:17 – Updated: 2026-08-11 14:29
VLAI
Title
XML External Entity Injection in SAP BusinessObjects Business Intelligence
Summary
SAP BusinessObjects Business Intelligence Platform (Web Intelligence) allows a low-privileged attacker to upload a specially crafted spreadsheet file containing malicious external references. When the file is processed as a data source, the affected component resolves these references and exposes the contents of sensitive server-side files within the resulting report. This results in a high impact on confidentiality, with no impact on integrity and availability.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 13:17 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
sap CNA
Impacted products
Vendor Product Version
SAP_SE SAP BusinessObjects Business Intelligence Affected: ENTERPRISE 430
Affected: 2025
Affected: 2027
Affected: ENTERPRISECLIENTTOOLS 430
Create a notification for this product.
Show details on NVD website

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CVE-2026-57917 (GCVE-0-2026-57917)

Vulnerability from cvelistv5 – Published: 2026-07-27 10:29 – Updated: 2026-07-27 14:41
VLAI
Title
Improper Restriction of XML External Entity Reference in proCertum SmartSign
Summary
proCertum SmartSign parses external XML entities from arbitrary crafted signature files, enabling SSRF and potentially allowing the reading of local files, depending on the parser's configuration. The XML External Entity (XXE) vulnerability is triggered simply by previewing a file in the file selection window, before the victim clicks “Open”. This issue was fixed in version 9.4.3.90.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-27 14:41 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
CERT-PL CNA
References
Impacted products
Vendor Product Version
Asseco proCertum SmartSign Affected: 0 , < 9.4.3.90 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-57259 (GCVE-0-2026-57259)

Vulnerability from cvelistv5 – Published: 2026-07-08 07:36 – Updated: 2026-07-08 13:15
VLAI
Title
Foxit PDF Editor/Reader XDP XFA XXE arbitrary local file read
Summary
The input file does not need to be strictly in a structurally valid PDF format. Instead, after reviewing the content, the original document disguised as a PDF will be sent to the parser. Malicious documents will construct malicious external entities that, through the protocol, point to local paths, thereby allowing access to any local files within the user's permission range.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-08 13:15 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference (CWE-611)
Assigner
Foxit CNA
Impacted products
Vendor Product Version
Foxit Software Inc. Foxit PDF Editor Affected: Versions 2026.1.1 and earlier
Affected: Versions 14.0.4 and earlier
Affected: Versions 13.2.4 and earlier
Create a notification for this product.
Foxit Software Inc. Foxit PDF Reader Affected: Versions 2026.1.1 and earlier
Create a notification for this product.
Show details on NVD website

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CVE-2026-57234 (GCVE-0-2026-57234)

Vulnerability from cvelistv5 – Published: 2026-06-25 14:30 – Updated: 2026-06-25 15:05
VLAI
Title
Nokogiri: XML::Schema on JRuby allows network requests when NONET is set, bypassing CVE-2020-26247
Summary
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, the NONET parse option, which Nokogiri turns on by default for Nokogiri::XML::Schema (see CVE-2020-26247), was not correctly enforced on the JRuby implementation. As a result, a schema parsed with default options could still cause external resources to be fetched over the network, potentially enabling SSRF or XXE attacks. This vulnerability is fixed in 1.19.4.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 15:05 UTC
CWE
  • CWE-178 - Improper Handling of Case Sensitivity
  • CWE-184 - Incomplete List of Disallowed Inputs
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
sparklemotion nokogiri Affected: < 1.19.4
Create a notification for this product.
Show details on NVD website

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CVE-2026-56817 (GCVE-0-2026-56817)

Vulnerability from cvelistv5 – Published: 2026-07-21 22:06 – Updated: 2026-07-22 15:42
VLAI
Title
Netty: XML External Entity (XXE) injection via unconfigured XML factory when DTD and entity processing are enabled
Summary
Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, any caller that can deliver bytes to a Netty channel pipeline containing `XmlDecoder` can send XML with a `DOCTYPE` declaration to an `AsyncXMLInputFactory` instantiated with no security configuration, leaving DTD and entity handling active depending on Aalto XML async parser behavior and creating conditional XML external entity risk. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-22 15:40 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
GitHub_M CNA
Impacted products
Vendor Product Version
netty netty Affected: >= 4.2.0.Final, < 4.2.16.Final
Affected: >= 4.1.0.Final, < 4.1.136.Final
Create a notification for this product.
Show details on NVD website

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CVE-2026-56701 (GCVE-0-2026-56701)

Vulnerability from cvelistv5 – Published: 2026-06-23 12:13 – Updated: 2026-10-08 15:23
VLAI
Title
Grav - XML External Entity Injection via SVG Upload
Summary
Grav before 2.0.0-beta.2 contains an XML external entity injection vulnerability in SVG file upload processing that allows authenticated attackers to read arbitrary files. The application uses simplexml_load_string without disabling external entity loading, enabling attackers to inject XXE payloads via malicious SVG files to exfiltrate sensitive data.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-23 14:35 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
Grav Grav Affected: 0 , < 2.0.0-beta.2 (semver)
Unaffected: 2.0.0-beta.2 (semver)
    cpe:2.3:a:getgrav:grav-plugin-admin:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-04-27 00:00
Show details on NVD website

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Mitigation
Implementation System Configuration

Many XML parsers and validators can be configured to disable external entity expansion.

CAPEC-221: Data Serialization External Entities Blowup

This attack takes advantage of the entity replacement property of certain data serialization languages (e.g., XML, YAML, etc.) where the value of the replacement is a URI. A well-crafted file could have the entity refer to a URI that consumes a large amount of resources to create a denial of service condition. This can cause the system to either freeze, crash, or execute arbitrary code depending on the URI.