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.

1827 vulnerabilities reference this CWE, most recent first.

CVE-2026-82880 (GCVE-0-2026-82880)

Vulnerability from cvelistv5 – Published: 2026-08-31 10:51 – Updated: 2026-08-31 14:18
VLAI
Title
YaCy Search Server through 1.941 XML External Entity Injection via Parsers
Summary
YaCy Search Server through 1.941 contains an XML external entity injection vulnerability in SVG, FreeMind, and OpenSearch parsers that fail to disable external entity resolution. Attackers can publish malicious documents with DOCTYPE declarations containing SYSTEM entities pointing to local files, causing the crawler to exfiltrate file contents into the searchable index.
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: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 14:17 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
yacy yacy_search_server Affected: 0 , ≤ 1.941 (custom)
Unaffected: 3c3a307e8b7a0ebbc4d1e6b10898b52e15c0cd44 (git)
Create a notification for this product.
Date Public
2026-08-22 00:00
Credits
Yu Sun
Show details on NVD website
To clipboard 

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CVE-2026-82578 (GCVE-0-2026-82578)

Vulnerability from cvelistv5 – Published: 2026-09-11 14:22 – Updated: 2026-09-11 14:57
VLAI
Title
NextGen Healthcare Mirth Connect Improper Restriction of XML External Entity Reference
Summary
When XML batch processing is turned on and the XPath option is selected, the raw batch input goes through a default XPath/JAXP setup with no entity restrictions, so XXE injection can allow data exfiltration and denial-of-service attacks.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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 2026-09-11 14:50 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
NextGen Healthcare Mirth Connect Affected: 0 , ≤ 4.7.1 (0)
Unaffected: 4.7.2
Create a notification for this product.
Credits
Abhinav Agarwal reported this vulnerability to CISA.
Show details on NVD website
To clipboard 

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CVE-2026-82525 (GCVE-0-2026-82525)

Vulnerability from cvelistv5 – Published: 2026-09-03 15:16 – Updated: 2026-09-14 13:50
VLAI
Title
Exterro FTK Imager < 8.3 XXE via Report.xml XSLT Processing
Summary
Exterro FTK Imager before 8.3 contains an XML external entity (XXE) injection vulnerability that allows attackers to read arbitrary files from the host filesystem by embedding malicious external entity references and attacker-controlled XSLT stylesheets within a Report.xml file inside a UFDR ZIP evidence item. Attackers can craft a malicious UFDR archive that, when previewed by an examiner, causes the XML parser to resolve file:// external entity references and execute msxsl:script within the external stylesheet to exfiltrate the resolved file contents to an attacker-controlled endpoint via a generated image URL.
Severity
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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 2026-09-14 13:03 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
  • CWE-829 - Inclusion of Functionality from Untrusted Control Sphere
Assigner
References
Impacted products
Vendor Product Version
Exterro FTK Imager Affected: 0 , < 8.3 (custom)
Create a notification for this product.
Date Public
2026-08-26 00:00
Credits
Mobasi Security Team
Show details on NVD website
To clipboard 

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CVE-2026-82386 (GCVE-0-2026-82386)

Vulnerability from cvelistv5 – Published: 2026-09-28 07:43 – Updated: 2026-09-29 14:56
VLAI
Title
Apache Roller: XML external entity processing in OPML bookmark import
Summary
Improper Restriction of XML External Entity Reference in Apache Roller 6.1.5 allows a weblog administrator to read files readable by the Roller process and reach internal network addresses by importing a crafted OPML document, because the bookmark import parser does not disable external entity resolution. No non-default configuration is required; the import is reached through the administrator bookmark-import action. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which uses a hardened parser that disables external entities and document type declarations.
Severity
7.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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 2026-09-29 14:54 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Credits
n0mi1k
Show details on NVD website
To clipboard 

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CVE-2026-82376 (GCVE-0-2026-82376)

Vulnerability from cvelistv5 – Published: 2026-09-28 07:46 – Updated: 2026-09-29 14:50
VLAI
Title
Apache Roller: XML external entity processing in trackback response parser
Summary
Improper Restriction of XML External Entity Reference in Apache Roller 6.1.5 allows a user with entry-editing rights on a weblog to cause the server to parse an attacker-influenced trackback response with an XML parser that does not disable external entity resolution, leading to disclosure of files readable by the Roller process. The Trackback control is hidden in the standard UI, but its action remains directly reachable, and no non-default server configuration is required. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which removes the outbound trackback response parser.
Severity
7.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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 2026-09-29 14:50 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Credits
meifukun
Show details on NVD website
To clipboard 

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CVE-2026-81832 (GCVE-0-2026-81832)

Vulnerability from cvelistv5 – Published: 2026-09-04 15:07 – Updated: 2026-09-04 16:00
VLAI
Title
IBM App Connect Enterprise and IBM Integration Bus for z/OS Adapter nodes are vulnerable to multiple CVEs
Summary
IBM App Connect Enterprise 13.0.1.0 through 13.0.8.1, and 12.0.1.0 through 12.0.12.28 and IBM Integration Bus for z/OS 10.1.0.0 through 10.1.0.7 SAP Adapter is vulnerable to an XML external entity (XXE) attack.
Severity
7.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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 2026-09-04 15:59 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7286372 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM App Connect Enterprise Affected: 13.0.1.0 , ≤ 13.0.8.1 (semver)
Affected: 12.0.1.0 , ≤ 12.0.12.28 (semver)
    cpe:2.3:a:ibm:app_connect_enterprise:13.0.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:app_connect_enterprise:13.0.8.1:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:app_connect_enterprise:12.0.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:app_connect_enterprise:12.0.12.28:*:*:*:*:*:*:*
Create a notification for this product.
IBM Integration Bus for z/OS Affected: 10.1.0.0 , ≤ 10.1.0.7 (semver)
    cpe:2.3:a:ibm:integration_bus_for_zos:10.1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:integration_bus_for_zos:10.1.0.7:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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        }
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CVE-2026-81536 (GCVE-0-2026-81536)

Vulnerability from cvelistv5 – Published: 2026-09-23 21:38 – Updated: 2026-09-24 13:26
VLAI
Title
DataStage on Cloud Pak for Data has several vulnerabilities
Summary
IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to obtain sensitive information due to an XML external entity (XXE) injection.
Severity
7.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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 2026-09-24 13:25 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
URL Tags
https://www.ibm.com/support/pages/node/7288649 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM DataStage on Cloud Pak for Data Affected: 5.4.0.0
    cpe:2.3:a:ibm:datastage_on_cloud_pak_for_data:5.4.0.0:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-78224 (GCVE-0-2026-78224)

Vulnerability from cvelistv5 – Published: 2026-09-11 14:20 – Updated: 2026-09-11 14:57
VLAI
Title
NextGen Healthcare Mirth Connect Improper Restriction of XML External Entity Reference
Summary
The XSLT Transformer Step builds a bare TransformerFactory without the proper security options set, so XXE injection can allow data exfiltration and denial-of-service attacks.
Severity
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
8.8 (High)
CVSS:4.0/AV:N/AC:L/AT:N/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 · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 14:51 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
NextGen Healthcare Mirth Connect Affected: 0 , ≤ 4.7.1 (0)
Unaffected: 4.7.2
Create a notification for this product.
Credits
Abhinav Agarwal reported this vulnerability to CISA.
Show details on NVD website
To clipboard 

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CVE-2026-76958 (GCVE-0-2026-76958)

Vulnerability from cvelistv5 – Published: 2026-09-08 00:11 – Updated: 2026-09-08 10:34
VLAI
Title
XML External Entity (XXE) Vulnerability in SAP Integration Suite
Summary
SAP Integration Suite does not sufficiently validate XML documents accepted from untrusted sources in certain internal components. An attacker with low privileges could submit specially crafted XML payloads containing malicious external entity declarations. Successful exploitation could allow the attacker to read sensitive file contents from the server and expose them through monitoring or logging output, resulting in a high impact on confidentiality. It could also lead to resource exhaustion, causing a low impact on availability. There is no impact on integrity.
Severity
8.5 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 10:01 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
References
Impacted products
Vendor Product Version
SAP_SE SAP Integration Suite Affected: Cloud Integration - Trading Partner Management V2 2.9.2
Affected: B2B Integration Factory - Cloud Integration - Trading Partner Management 1.10.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-76572 (GCVE-0-2026-76572)

Vulnerability from cvelistv5 – Published: 2026-08-19 19:30 – Updated: 2026-08-20 12:30 X_Open Source
VLAI
Title
pkp pkp-lib XSLTransformer.php _transformPHP xml external entity reference
Summary
A vulnerability was detected in pkp pkp-lib up to 3.3.0-22/3.4.0-10/3.5.0-4. The affected element is the function _transformPHP of the file classes/xslt/XSLTransformer.php. The manipulation results in xml external entity reference. The attack can be executed remotely. Upgrading to version 3.3.0-23, 3.4.0-11 and 3.5.0-5 is sufficient to fix this issue. The patch is identified as 78c699370ea43ae2784e1c4ace7c947d207f2b47. Upgrading the affected component is advised.
Severity
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
4.7 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
4.7 (Medium)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 12:28 UTC
CWE
  • CWE-611 - XML External Entity Reference
  • CWE-610 - Externally Controlled Reference
Assigner
References
Impacted products
Vendor Product Version
pkp pkp-lib Affected: 3.3.0-22
Affected: 3.4.0-10
Affected: 3.5.0-4
Unaffected: 3.3.0-23
Unaffected: 3.4.0-11
Unaffected: 3.5.0-5
    cpe:2.3:a:pkp:pkp-lib:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Razielx64 (VulDB User)
Show details on NVD website
To clipboard 

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                    "Technical Impact": "partial"
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                "timestamp": "2026-08-20T12:28:12.755115Z",
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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    ],
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        {
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            "cpe:2.3:a:pkp:pkp-lib:*:*:*:*:*:*:*:*"
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          "product": "pkp-lib",
          "vendor": "pkp",
          "versions": [
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              "version": "3.3.0-22"
            },
            {
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              "version": "3.4.0-10"
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            {
              "status": "affected",
              "version": "3.5.0-4"
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              "version": "3.3.0-23"
            },
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          "type": "reporter",
          "value": "Razielx64 (VulDB User)"
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          "value": "A vulnerability was detected in pkp pkp-lib up to 3.3.0-22/3.4.0-10/3.5.0-4. The affected element is the function _transformPHP of the file classes/xslt/XSLTransformer.php. The manipulation results in xml external entity reference. The attack can be executed remotely. Upgrading to version 3.3.0-23, 3.4.0-11 and 3.5.0-5 is sufficient to fix this issue. The patch is identified as 78c699370ea43ae2784e1c4ace7c947d207f2b47. Upgrading the affected component is advised."
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            "baseSeverity": "MEDIUM",
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      "problemTypes": [
        {
          "descriptions": [
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              "cweId": "CWE-611",
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          ]
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        {
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          "name": "VDB-393037 | pkp pkp-lib XSLTransformer.php _transformPHP xml external entity reference",
          "tags": [
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            "technical-description"
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          "url": "https://vuldb.com/vuln/393037"
        },
        {
          "name": "VDB-393037 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
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          "url": "https://vuldb.com/vuln/393037/cti"
        },
        {
          "name": "CVE-2026-76572 | CVE Analysis and Report",
          "tags": [
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          "url": "https://vuldb.com/cve/CVE-2026-76572"
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        {
          "name": "Submit #878359 | Public Knowledge Project OJS/OMP/OPS 3.3.0-22 and older XML Injection",
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        },
        {
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          "url": "https://github.com/pkp/pkp-lib/issues/12977"
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          "tags": [
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          "url": "https://github.com/pkp/pkp-lib/commit/78c699370ea43ae2784e1c4ace7c947d207f2b47"
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          "tags": [
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          "url": "https://github.com/pkp/pkp-lib/releases/tag/3_5_0-5"
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          "url": "https://github.com/pkp/pkp-lib/"
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      "tags": [
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      "timeline": [
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          "lang": "en",
          "time": "2026-08-19T00:00:00.000Z",
          "value": "Advisory disclosed"
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        {
          "lang": "en",
          "time": "2026-08-19T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-08-19T15:51:10.000Z",
          "value": "VulDB entry last update"
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      ],
      "title": "pkp pkp-lib XSLTransformer.php _transformPHP xml external entity reference",
      "x_generator": [
        "VulDB PVTS v202608"
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    }
  },
  "cveMetadata": {
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    "cveId": "CVE-2026-76572",
    "datePublished": "2026-08-19T19:30:10.341Z",
    "dateReserved": "2026-08-19T13:45:40.432Z",
    "dateUpdated": "2026-08-20T12:30:55.812Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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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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