Common Weakness Enumeration

CWE-611

Allowed

Improper Restriction of XML External Entity Reference

Abstraction: Base · Status: Draft

API response cwe.mitre.org

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.

1710 vulnerabilities reference this CWE, most recent first.

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.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
Asseco proCertum SmartSign Affected: 0 , < 9.4.3.90 (semver)
Create a notification for this product.
Credits
Mariusz Maik
Show details on NVD website
To clipboard 

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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.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference (CWE-611)
Assigner
References
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.
Credits
Trung Nguyen (@everping) of CyStack
Show details on NVD website
To clipboard 

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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.
Severity
2.6 (Low)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
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
References
Impacted products
Vendor Product Version
sparklemotion nokogiri Affected: < 1.19.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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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.
Severity
8.3 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
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
To clipboard 

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

Vulnerability from cvelistv5 – Published: 2026-06-23 12:13 – Updated: 2026-06-23 14:42
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.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
Grav Grav Affected: 0 , < 2.0.0-beta.2 (semver)
Unaffected: 2.0.0-beta.2 (semver)
Create a notification for this product.
Date Public
2026-04-27 00:00
Show details on NVD website
To clipboard 

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CVE-2026-55471 (GCVE-0-2026-55471)

Vulnerability from cvelistv5 – Published: 2026-07-08 21:28 – Updated: 2026-07-09 13:26
VLAI
Title
HAPI FHIR: XXE in XsltUtilities.saxonTransform via unhardened Saxon TransformerFactory
Summary
HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to 6.9.10, org.hl7.fhir.utilities.XsltUtilities saxonTransform(...) overloads instantiated a bare net.sf.saxon.TransformerFactoryImpl() without ACCESS_EXTERNAL_DTD or ACCESS_EXTERNAL_STYLESHEET restrictions, allowing an attacker who controls or can tamper with transformed XML to trigger XML External Entity injection for local file disclosure and blind XXE or SSRF to arbitrary URLs reachable from the host. This issue is fixed in version 6.9.10.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
hapifhir org.hl7.fhir.core Affected: < 6.9.10
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-54470 (GCVE-0-2026-54470)

Vulnerability from cvelistv5 – Published: 2026-07-10 12:20 – Updated: 2026-07-10 14:43
VLAI
Summary
Dell Unisphere for PowerMax, version(s) 10.3.0.5 and prior contain(s) an Improper Restriction of XML External Entity Reference vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Unauthorized access.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
Dell Unisphere for PowerMax Affected: 0 , < 10.3.0.7 or later (semver)
Affected: 0 , < 10.3.1.1 Patch 11360 or later (semver)
Create a notification for this product.
Date Public
2026-07-09 06:30
Show details on NVD website
To clipboard 

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CVE-2026-54366 (GCVE-0-2026-54366)

Vulnerability from cvelistv5 – Published: 2026-07-30 12:25 – Updated: 2026-07-30 12:59
VLAI
Title
CentreStack < 17.4 XXE via SharePoint Storage Configuration
Summary
CentreStack before 17.4 contains an XML external entity (XXE) injection vulnerability that allows unauthenticated attackers to exfiltrate arbitrary files by supplying a malicious URL to the SharePoint storage configuration handler. Attackers can send a crafted request to the unauthenticated StorageConfig endpoint causing the server to fetch and parse attacker-controlled XML containing external DTD references, resulting in out-of-band file exfiltration of sensitive files such as Web.config, which may contain database credentials and cryptographic key material.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
Gladinet CentreStack Affected: 0 , < 17.4 (custom)
Create a notification for this product.
Date Public
2026-07-28 00:00
Credits
PeterV @cfc security ltd
Show details on NVD website
To clipboard 

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CVE-2026-54082 (GCVE-0-2026-54082)

Vulnerability from cvelistv5 – Published: 2026-07-29 15:14 – Updated: 2026-07-30 13:52
VLAI
Title
veraPDF-validatio: Use of Default `DocumentBuilderFactory` leads to XXE When Processing Untrusted PDFs
Summary
veraPDF validation model is an implementation of the veraPDF validation model. From 1.25.73 until 1.30.2 and 1.31.71, veraPDF-validation contains an XML External Entity vulnerability in PDFAValidator.validate(...) and GFPDAcroForm.getdynamicRender(), where default DocumentBuilderFactory parsing of rich-text annotation or form-field values and XFA configurations in untrusted PDFs can allow local file disclosure and outbound network requests. This issue is fixed in versions 1.30.2 and 1.31.71.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
veraPDF veraPDF-validation Affected: >= 1.17.35, < 1.30.2
Affected: >= 1.31.1, < 1.31.71
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-54079 (GCVE-0-2026-54079)

Vulnerability from cvelistv5 – Published: 2026-07-29 15:07 – Updated: 2026-07-29 15:44
VLAI
Title
veraPDF Validation XXE via XFA
Summary
veraPDF validation provides PDF/A and PDF/UA validation, feature reporting, and metadata repair. From 1.17.35 until 1.30.2 and 1.31.71, veraPDF-validation contains an XML External Entity (XXE) vulnerability in validation-model/src/main/java/org/verapdf/gf/model/impl/pd/GFPDAcroForm.java in the getdynamicRender() method, where a crafted PDF containing a malicious XFA stream can cause external entity expansion during PDF/UA-1 validation and allow local file disclosure or outbound server-side requests. This issue is fixed in versions 1.30.2 and 1.31.71.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
veraPDF veraPDF-validation Affected: >= 1.17.35, < 1.30.2
Affected: >= 1.31.1, < 1.31.71
Create a notification for this product.
Show details on NVD website
To clipboard 

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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.

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