Vulnerability-Lookup

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

Vulnerability from cvelistv5 – Published: 2026-07-29 15:14 – Updated: 2026-07-30 13:52

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 8083 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-2026-54082

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

Severity

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A: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-cg9x-g3gm-h5h6

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "veraPDF-validation",
          "vendor": "veraPDF",
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    },
    {
      "lang": "es",
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GHSA-CG9X-G3GM-H5H6

Vulnerability from github – Published: 2026-07-29 15:14 – Updated: 2026-07-29 15:14

Summary

veraPDF-validatio: Use of Default `DocumentBuilderFactory` leads to XXE When Processing Untrusted PDFs

Details

Summary

veraPDF-validation has an XML External Entity (XXE) vulnerability in two PDF parsing paths (validate and GFPDAcroForm.getdynamicRender()). A malicious/crafted PDF supplied to a veraPDF consumer can lead to the expansion of external entities while parsing rich-text annotation/form-field values or XFA configurations, allowing local file disclosure and potentially outbound network requests depending on the runtime (host) environment.

Details

Consumers that utilise either the PDFAValidator.validate(...) or GFPDAcroForm(acroForm).getdynamicRender() APIs to process untrusted PDFs are vulnerable to XXE exploits.

Both vulnerable paths share the same root cause: the underlying source binds a default DocumentBuilderFactory and immediately calls newDocumentBuilder() which does not disable parsing of DTDs, external entities, XInclude, or external resource access directives in XML schemas.

This is an XXE vulnerability affecting applications that use veraPDF's affected APIs to parse or validate untrusted PDFs.

An attacker could craft a PDF that includes crafted XML external entities that when processed by vulnerable consumers could lead to local file disclosure and server-side outbound requests to attacker-controlled endpoints, depending on JVM XML parser behavior and network controls on the host.

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [
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      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.30.1"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.verapdf:validation-model"
      },
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            {
              "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-2026-54082"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-611"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-29T15:14:32Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nveraPDF-validation has an XML External Entity (XXE) vulnerability in two PDF parsing paths (validate and `GFPDAcroForm.getdynamicRender()`). A malicious/crafted PDF supplied to a veraPDF consumer can lead to the expansion of external entities while parsing rich-text annotation/form-field values or XFA configurations, allowing local file disclosure and potentially outbound network requests depending on the runtime (host) environment.\n\n### Details\n\nConsumers that utilise either the `PDFAValidator.validate(...)` or `GFPDAcroForm(acroForm).getdynamicRender()` APIs to process untrusted PDFs are vulnerable to XXE exploits. \n\nBoth vulnerable paths share the same root cause: the underlying source binds a default `DocumentBuilderFactory` and immediately calls `newDocumentBuilder()` which does not disable parsing of DTDs, external entities, XInclude, or external resource access directives in XML schemas.\n\nThis is an XXE vulnerability affecting applications that use veraPDF\u0027s affected APIs to parse or validate untrusted PDFs.\n\nAn attacker could craft a PDF that includes crafted XML external entities that when processed by vulnerable consumers could lead to local file disclosure and server-side outbound requests to attacker-controlled endpoints, depending on JVM XML parser behavior and network controls on the host.",
  "id": "GHSA-cg9x-g3gm-h5h6",
  "modified": "2026-07-29T15:14:32Z",
  "published": "2026-07-29T15:14:32Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/veraPDF/veraPDF-validation/security/advisories/GHSA-cg9x-g3gm-h5h6"
    },
    {
      "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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "veraPDF-validatio: Use of Default `DocumentBuilderFactory` leads to XXE When Processing Untrusted PDFs"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

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

FKIE_CVE-2026-54082

GHSA-CG9X-G3GM-H5H6

Summary

Details

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Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour