Vulnerability-Lookup

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

Vulnerability from cvelistv5 – Published: 2026-07-29 15:07 – Updated: 2026-07-29 15:44

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 7838 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/veraPDF/veraPDF-validation/sec…	x_refsource_CONFIRM
https://github.com/veraPDF/veraPDF-validation/pull/730	x_refsource_MISC
https://github.com/veraPDF/veraPDF-validation/com…	x_refsource_MISC
https://github.com/veraPDF/veraPDF-validation/com…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
veraPDF	veraPDF-validation	Affected: >= 1.17.35, < 1.30.2 Affected: >= 1.31.1, < 1.31.71	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-54079

Vulnerability from fkie_nvd - Published: 2026-07-29 16:17 - Updated: 2026-10-23 23:10

Severity

8.7 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/veraPDF/veraPDF-validation/commit/94caa46c1a594512247fbd46c808edae39469542
	security-advisories@github.com	https://github.com/veraPDF/veraPDF-validation/commit/cacd9436d0de40b0e58cc7d2dbb06451619e61ec
	security-advisories@github.com	https://github.com/veraPDF/veraPDF-validation/pull/730
	security-advisories@github.com	https://github.com/veraPDF/veraPDF-validation/security/advisories/GHSA-36mm-w85j-3q2j

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "veraPDF-validation",
          "vendor": "veraPDF",
          "versions": [
            {
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              "version": "\u003e= 1.17.35, \u003c 1.30.2"
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    },
    {
      "lang": "es",
      "value": "La validaci\u00f3n de veraPDF proporciona validaci\u00f3n de PDF/A y PDF/UA, informes de caracter\u00edsticas y reparaci\u00f3n de metadatos. Desde la 1.17.35 hasta la 1.30.2 y la 1.31.71, veraPDF-validation contiene una vulnerabilidad de entidad externa XML (XXE) en validation-model/src/main/java/org/verapdf/gf/model/impl/pd/GFPDAcroForm.java en el m\u00e9todo getdynamicRender(), donde un PDF manipulado que contiene un flujo XFA malicioso puede causar la expansi\u00f3n de entidades externas durante la validaci\u00f3n de PDF/UA-1 y permitir la divulgaci\u00f3n de archivos locales o solicitudes salientes del lado del servidor. Este problema est\u00e1 corregido en las versiones 1.30.2 y 1.31.71."
    }
  ],
  "id": "CVE-2026-54079",
  "lastModified": "2026-10-23T23:10:00.157",
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          "vulnerabilityResponseEffort": "NOT_DEFINED"
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        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-54079",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-29T15:44:48.006185Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-29T16:17:53.203",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/veraPDF/veraPDF-validation/commit/94caa46c1a594512247fbd46c808edae39469542"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/veraPDF/veraPDF-validation/commit/cacd9436d0de40b0e58cc7d2dbb06451619e61ec"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/veraPDF/veraPDF-validation/pull/730"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/veraPDF/veraPDF-validation/security/advisories/GHSA-36mm-w85j-3q2j"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-611"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}

GHSA-36MM-W85J-3Q2J

Vulnerability from github – Published: 2026-07-29 15:08 – Updated: 2026-07-29 15:08

Summary

veraPDF Validation XXE via XFA

Details

Summary

Description An XML External Entity Injection (CWE-611) vulnerability in veraPDF allows a remote attacker to read arbitrary files on the server file system and perform Server-Side Request Forgery by submitting a crafted PDF containing a malicious XFA stream. This affects all current versions of veraPDF-validation.

Details

The vulnerability resides in veraPDF-validation validation-model/src/main/java/org/verapdf/gf/model/impl/pd/GFPDAcroForm.java within the getdynamicRender() method. This method retrieves the /XFA entry from the PDF's /AcroForm dictionary, decodes the embedded XML stream, and parses it to extract the <dynamicRender> element value.

The vulnerability stems from the use of a default-configured DocumentBuilderFactory to parse fully attacker-controlled XML:
- The factory is created via DocumentBuilderFactory.newInstance() with no security features enabled. disallow-doctype-decl, external-general-entities, external-parameter-entities, and FEATURE_SECURE_PROCESSING are all left at their insecure defaults.
- The input passed to builder.parse() is the decoded /XFA stream taken directly from the untrusted PDF.
- The text content of the <dynamicRender> node is returned to the validation model. Note that the shipped PDF/UA-1 rule (dynamicRender != 'required') consumes this value but does not echo it into the report output, so reliable exfiltration requires the out-of-band parameter-entity technique described under Impact rather than in-band reflection.

Impact

This impacts all current releases of the veraPDF validation-model module.

Successful exploitation requires only that the target validate an attacker-supplied PDF against the PDF/UA-1 profile (or via flavour auto-detection on a PDF that declares PDF/UA-1 conformance), since getdynamicRender() is invoked by the dynamicRender != 'required' rule in the bundled PDF/UA-1 profile. No additional configuration or operator action is required.

Proposed Patch

Harden the DocumentBuilderFactory in validation-model/src/main/java/org/verapdf/gf/model/impl/pd/GFPDAcroForm.java per the OWASP XXE Prevention Cheat Sheet to disallow DOCTYPE outright.

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

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.30.1"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.verapdf:validation-model"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.17.35"
            },
            {
              "fixed": "1.30.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.31.70"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.verapdf:validation-model"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.31.1"
            },
            {
              "fixed": "1.31.71"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.30.1"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.verapdf:validation-model-jakarta"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.17.35"
            },
            {
              "fixed": "1.30.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.31.70"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.verapdf:validation-model-jakarta"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.31.1"
            },
            {
              "fixed": "1.31.71"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-54079"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-29T15:08:17Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "## Summary  \n  \n**Description**\nAn XML External Entity Injection (CWE-611) vulnerability in veraPDF allows a remote attacker to read arbitrary files on the server file system and perform Server-Side Request Forgery by submitting a crafted PDF containing a malicious XFA stream. This affects all current versions of veraPDF-validation.  \n  \n## Details  \nThe vulnerability resides in veraPDF-validation `validation-model/src/main/java/org/verapdf/gf/model/impl/pd/GFPDAcroForm.java` within the `getdynamicRender()` method. This method retrieves the /XFA entry from the PDF\u0027s /AcroForm dictionary, decodes the embedded XML stream, and parses it to extract the `\u003cdynamicRender\u003e` element value.  \n  \nThe vulnerability stems from the use of a default-configured `DocumentBuilderFactory` to parse fully attacker-controlled XML:  \n- The factory is created via `DocumentBuilderFactory.newInstance()` with no security features enabled. disallow-doctype-decl, external-general-entities, external-parameter-entities, and FEATURE_SECURE_PROCESSING are all left at their insecure defaults.  \n- The input passed to `builder.parse()` is the decoded /XFA stream taken directly from the untrusted PDF.  \n- The text content of the `\u003cdynamicRender\u003e` node is returned to the validation model. Note that the shipped PDF/UA-1 rule (`dynamicRender != \u0027required\u0027`) consumes this value but does not echo it into the report output, so reliable exfiltration requires the out-of-band parameter-entity technique described under Impact rather than in-band reflection.  \n  \n## Impact  \n  \nThis impacts all current releases of the veraPDF validation-model module.  \n  \nSuccessful exploitation requires only that the target validate an attacker-supplied PDF against the PDF/UA-1 profile (or via flavour auto-detection on a PDF that declares PDF/UA-1 conformance), since `getdynamicRender()` is invoked by the `dynamicRender != \u0027required\u0027` rule in the bundled PDF/UA-1 profile. No additional configuration or operator action is required.  \n    \n## Proposed Patch  \n  \nHarden the `DocumentBuilderFactory` in `validation-model/src/main/java/org/verapdf/gf/model/impl/pd/GFPDAcroForm.java` per the OWASP XXE Prevention Cheat Sheet to disallow DOCTYPE outright.",
  "id": "GHSA-36mm-w85j-3q2j",
  "modified": "2026-07-29T15:08:17Z",
  "published": "2026-07-29T15:08:17Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/veraPDF/veraPDF-validation/security/advisories/GHSA-36mm-w85j-3q2j"
    },
    {
      "type": "WEB",
      "url": "https://github.com/veraPDF/veraPDF-validation/pull/730"
    },
    {
      "type": "WEB",
      "url": "https://github.com/veraPDF/veraPDF-validation/commit/94caa46c1a594512247fbd46c808edae39469542"
    },
    {
      "type": "WEB",
      "url": "https://github.com/veraPDF/veraPDF-validation/commit/cacd9436d0de40b0e58cc7d2dbb06451619e61ec"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/veraPDF/veraPDF-validation"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "veraPDF Validation XXE via XFA"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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

FKIE_CVE-2026-54079

GHSA-36MM-W85J-3Q2J

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