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.

1857 vulnerabilities reference this CWE, most recent first.

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 · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:26 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7609 records in the last 180 days details
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-2026-54640 (GCVE-0-2026-54640)

Vulnerability from cvelistv5 – Published: 2026-10-13 16:02 – Updated: 2026-10-13 20:22
VLAI
Title
OpenRemote: XXE in KNXProtocol.startAssetImport() allows arbitrary file read via unprotected XMLInputFactory
Summary
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Severity
7.6 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 20:13 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7609 records in the last 180 days details
References
Impacted products
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-07-10 14:42 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
dell CNA under the mitre root
CNA scorecard C 70/100 over 440 records in the last 180 days details
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: 2026-08-14 16:50
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 12:57 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6463 records in the last 180 days details
References
Impacted products
Vendor Product Version
Gladinet CentreStack Affected: 0 , < 17.4 (custom)
    cpe:2.3:a:gladinet:centrestack:*:*:*:*:*:*:*:*
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 13:51 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7609 records in the last 180 days details
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
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7609 records in the last 180 days details
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
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7609 records in the last 180 days details
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
apache CNA under the mitre root
CNA scorecard B 76/100 over 1004 records in the last 180 days details
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
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7609 records in the last 180 days details
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
adobe CNA under the mitre root
CNA scorecard C 75/100 over 803 records in the last 180 days details
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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            "scope": "CHANGED",
            "temporalScore": 9.6,
            "temporalSeverity": "CRITICAL",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-611",
              "description": "Improper Restriction of XML External Entity Reference (\u0027XXE\u0027) (CWE-611)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-27T22:39:22.135Z",
        "orgId": "078d4453-3bcd-4900-85e6-15281da43538",
        "shortName": "adobe"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://helpx.adobe.com/security/products/experience-manager/apsb26-74.html"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Adobe Experience Manager | Improper Restriction of XML External Entity Reference (\u0027XXE\u0027) (CWE-611)",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "078d4453-3bcd-4900-85e6-15281da43538",
    "assignerShortName": "adobe",
    "cveId": "CVE-2026-48359",
    "datePublished": "2026-07-14T19:21:00.902Z",
    "dateReserved": "2026-05-21T15:28:38.140Z",
    "dateUpdated": "2026-08-27T22:39:22.135Z",
    "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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