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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.

1801 vulnerabilities reference this CWE, most recent first.

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 · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 13:51 UTC
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 15:44 UTC
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-2026-54078 (GCVE-0-2026-54078)

Vulnerability from cvelistv5 – Published: 2026-07-29 15:11 – Updated: 2026-07-29 18:02
VLAI
Title
veraPDF Validation XXE via Rich Text
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 (XXE) vulnerability in validation-model/src/main/java/org/verapdf/gf/model/tools/DictionaryKeysHelper.java in getRichTextStringOrStreamEntryStringRepresentation(), where a crafted PDF containing a malicious rich-text /RC or /RV entry can cause external entity expansion and reflect local file contents into the validation report. 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 · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 18:01 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
veraPDF veraPDF-validation Affected: >= 1.25.73, < 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-2026-49875 (GCVE-0-2026-49875)

Vulnerability from cvelistv5 – Published: 2026-06-12 08:54 – Updated: 2026-08-07 12:42
VLAI
Title
Apache CXF: XML External Entity (XXE) Injection in W3CMultiSchemaFactory and EndpointReferenceUtils
Summary
Apache CXF's EndpointReferenceUtils and W3CMultiSchemaFactory classes construct a SAXParserFactory without the necessary JAXP hardening configurations, enabling out-of-band (OOB) external entity resolution. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fix this issue.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A: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: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-15 19:21 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Credits
Venkatraman Kumar (r3dw0lfsec), Securin
Show details on NVD website
To clipboard 

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CVE-2026-48981 (GCVE-0-2026-48981)

Vulnerability from cvelistv5 – Published: 2026-06-18 18:55 – Updated: 2026-06-22 15:19
VLAI
Title
pam_usb: xmlReadFile flags=0 permits XXE network entity fetching in conf.c
Summary
pam_usb provides hardware authentication for Linux using ordinary removable media. In versions prior to 0.9.2, pam_usb calls xmlReadFile() with flags=0 when loading the configuration file, allowing libxml2 to process external entity references (XXE), potentially making outbound network connections or local file reads at XML parse time from the context of the authenticating process. The vulnerability requires the configuration file to contain crafted XML entity references. Since pam_usb.conf is root-owned, direct exploitation requires prior write access to the config, but the defence-in-depth impact is significant given that pam_usb.so runs in setuid contexts (sudo, su). This issue has been fixed in version 0.9.2.
Severity
6.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-22 15:19 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
mcdope pam_usb Affected: < 0.9.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-48359 (GCVE-0-2026-48359)

Vulnerability from cvelistv5 – Published: 2026-07-14 19:21 – Updated: 2026-08-27 22:39
VLAI
Title
Adobe Experience Manager | Improper Restriction of XML External Entity Reference ('XXE') (CWE-611)
Summary
Adobe Experience Manager is affected by an Improper Restriction of XML External Entity Reference ('XXE') vulnerability that could result in arbitrary code execution in the context of the current user. A low-privileged attacker could exploit this vulnerability to read sensitive files, potentially gaining elevated access or control over the victim's account or session. Exploitation of this issue does not require user interaction. Scope is changed.
Severity
9.6 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 04:00 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference ('XXE') (CWE-611)
Assigner
References
Impacted products
Vendor Product Version
Adobe Adobe Experience Manager as a Cloud Service Affected: 0 , ≤ 2026.5.0 (custom)
Unaffected: 2026.6.0 (custom)
Create a notification for this product.
Adobe Adobe Experience Manager 6.5 LTS Affected: 0 , ≤ SP2 (custom)
Unaffected: SP2 - Hotfix for NPR-43972 (custom)
Create a notification for this product.
Adobe Adobe Experience Manager 6.5 Affected: 0 , ≤ 6.5.25 (custom)
Unaffected: 6.5.25 - Hotfix for NPR-43971 (custom)
Create a notification for this product.
Date Public
2026-07-14 17:00
Show details on NVD website
To clipboard 

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CVE-2026-47960 (GCVE-0-2026-47960)

Vulnerability from cvelistv5 – Published: 2026-06-09 20:33 – Updated: 2026-08-27 22:37
VLAI
Title
ColdFusion | Improper Restriction of XML External Entity Reference ('XXE') (CWE-611)
Summary
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Severity
7.4 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 13:46 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference ('XXE') (CWE-611)
Assigner
References
Impacted products
Vendor Product Version
Adobe ColdFusion 2025 Affected: 0 , ≤ 8 (custom)
Unaffected: 9 (custom)
Create a notification for this product.
Adobe ColdFusion 2023 Affected: 0 , ≤ 19 (custom)
Unaffected: 20 (custom)
Create a notification for this product.
Date Public
2026-06-09 17:00
Show details on NVD website
To clipboard 

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CVE-2026-47898 (GCVE-0-2026-47898)

Vulnerability from cvelistv5 – Published: 2026-07-03 07:47 – Updated: 2026-07-06 17:32
VLAI
Title
Apache Lucene.Net: XXE vulnerability in Lucene.Net.Analysis.Common PatternParser
Summary
Improper Restriction of XML External Entity Reference vulnerability in Apache Lucene.Net (Lucene.Net.Analysis.Common library). This issue affects Apache Lucene.Net.Analysis.Common: from 4.8.0-beta00005 before 4.8.0-beta00018. Users are recommended to upgrade to version 4.8.0-beta00018, which fixes the issue.
Severity
4 (Medium)
CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 17:32 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Lucene.Net Affected: 4.8.0-beta00005 , < 4.8.0-beta00018 (semver)
Create a notification for this product.
Credits
Daniel Cervera Paul Irwin Shad Storhaug
Show details on NVD website
To clipboard 

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CVE-2026-46722 (GCVE-0-2026-46722)

Vulnerability from cvelistv5 – Published: 2026-05-19 09:23 – Updated: 2026-06-03 10:54
VLAI
Title
XML External Entity Injection in extension "Faceted Search" (ke_search)
Summary
The OOXML parsing of the file indexer does not disable external entity resolution. A crafted xlsx or pptx document placed in an indexed directory can cause local files to be read or outbound HTTP requests to be performed, with the retrieved content being written to the search index.
Severity
5.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-19 13:29 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
TYPO3 Extension "Faceted Search" Affected: 7.0.0 , < 7.0.1 (semver)
Affected: 6.0.0 , < 6.6.1 (semver)
Affected: 5.0.0 , < 5.6.2 (semver)
Affected: 0 , < 4.6.7 (semver)
Create a notification for this product.
Date Public
2026-05-19 09:00
Credits
Seungbin Yang Christian Bülter
Show details on NVD website
To clipboard 

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CVE-2026-45071 (GCVE-0-2026-45071)

Vulnerability from cvelistv5 – Published: 2026-07-14 18:58 – Updated: 2026-07-15 14:21
VLAI
Title
Symfony: XXE (Local File Disclosure) in DomCrawler::addXmlContent() via validateOnParse = true
Summary
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, Crawler::addXmlContent() set DOMDocument::$validateOnParse = true before loadXML(), re-enabling external entity resolution and allowing attacker-supplied XML to expand file:// entities such as local files. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 14:20 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
symfony symfony Affected: < 5.4.52
Affected: >= 6.0.0-BETA1, < 6.4.40
Affected: >= 7.0.0-BETA1, < 7.4.12
Affected: >= 8.0.0-BETA1, < 8.0.12
Create a notification for this product.
symfony dom-crawler Affected: < 5.4.52
Affected: >= 6.0.0-BETA1, < 6.4.40
Affected: >= 7.0.0-BETA1, < 7.4.12
Affected: >= 8.0.0-BETA1, < 8.0.12
Create a notification for this product.
Show details on NVD website
To clipboard 

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              "version": "\u003e= 8.0.0-BETA1, \u003c 8.0.12"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, Crawler::addXmlContent() set DOMDocument::$validateOnParse = true before loadXML(), re-enabling external entity resolution and allowing attacker-supplied XML to expand file:// entities such as local files. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-611",
              "description": "CWE-611: Improper Restriction of XML External Entity Reference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-14T18:58:15.162Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/symfony/symfony/security/advisories/GHSA-x6g4-fwcc-jj8w",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/symfony/symfony/security/advisories/GHSA-x6g4-fwcc-jj8w"
        },
        {
          "name": "https://github.com/symfony/symfony/commit/eea5fd7488cbdc241da4ce242344b7d9a3ecdf3d",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/symfony/symfony/commit/eea5fd7488cbdc241da4ce242344b7d9a3ecdf3d"
        },
        {
          "name": "https://github.com/symfony/symfony/releases/tag/v5.4.52",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/symfony/symfony/releases/tag/v5.4.52"
        },
        {
          "name": "https://github.com/symfony/symfony/releases/tag/v6.4.40",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/symfony/symfony/releases/tag/v6.4.40"
        },
        {
          "name": "https://github.com/symfony/symfony/releases/tag/v7.4.12",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/symfony/symfony/releases/tag/v7.4.12"
        },
        {
          "name": "https://github.com/symfony/symfony/releases/tag/v8.0.12",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/symfony/symfony/releases/tag/v8.0.12"
        }
      ],
      "source": {
        "advisory": "GHSA-x6g4-fwcc-jj8w",
        "discovery": "UNKNOWN"
      },
      "title": "Symfony: XXE (Local File Disclosure) in DomCrawler::addXmlContent() via validateOnParse = true"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-45071",
    "datePublished": "2026-07-14T18:58:15.162Z",
    "dateReserved": "2026-05-08T18:45:10.096Z",
    "dateUpdated": "2026-07-15T14:21:08.891Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
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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