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CVE-2026-54082— veraPDF-validatio: Use of Default `DocumentBuilderFactory` leads to XXE When Processing Untrusted PDFs

Quick assessment

Affected
veraPDF veraPDF-validation
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

veraPDF veraPDF-validation是veraPDF组织的一款PDF验证软件。 veraPDF veraPDF-validation 1.25.73版本至1.30.2之前版本和1.31.71之前版本存在输入验证错误漏洞，该漏洞源于XML外部实体漏洞，在PDFAValidator.validate和GFPDAcroForm.getdynamicRender中，默认DocumentBuilderFactory解析不可信PDF中的富文本注释或表单字段值和XFA配置，可能导致本地文件泄露和出站网络

CVSS 6.5 · Medium EPSS 0.40% · P31

Affected Version Matrix 2

VendorProduct Version RangeStatus
veraPDF veraPDF-validation >= 1.17.35, < 1.30.2 affected
>= 1.31.1, < 1.31.71 affected
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I. Basic Information for CVE-2026-54082

Vulnerability Information
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Vulnerability Title
veraPDF-validatio: Use of Default `DocumentBuilderFactory` leads to XXE When Processing Untrusted PDFs
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
XML外部实体引用的不恰当限制(XXE)
Source: CVE Program / CVE List V5
Vulnerability Title
veraPDF veraPDF-validation 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
veraPDF veraPDF-validation是veraPDF组织的一款PDF验证软件。 veraPDF veraPDF-validation 1.25.73版本至1.30.2之前版本和1.31.71之前版本存在输入验证错误漏洞，该漏洞源于XML外部实体漏洞，在PDFAValidator.validate和GFPDAcroForm.getdynamicRender中，默认DocumentBuilderFactory解析不可信PDF中的富文本注释或表单字段值和XFA配置，可能导致本地文件泄露和出站网络
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
veraPDF veraPDF-validation >= 1.17.35, < 1.30.2 -

II. Public POCs for CVE-2026-54082

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III. Intelligence Information for CVE-2026-54082

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Patches & Fixes for CVE-2026-54082 (3)

Vendor Advisories for CVE-2026-54082 (1)

Same Patch Batch · veraPDF · 2026-07-29 · 5 CVEs total

CVE-2026-54078 8.7 HIGH veraPDF Validation XXE via Rich Text
CVE-2026-54079 8.7 HIGH veraPDF Validation XXE via XFA
CVE-2026-54080 6.9 MEDIUM veraPDF Parser DoS via PostScript CMap Streams
CVE-2026-54081 6.9 MEDIUM veraPDF Parser DoS via PostScript Type 1 Font Programs

IV. Related Vulnerabilities

Same product: veraPDF-validation
Same vendor: veraPDF
Same weakness: CWE-611

V. Comments for CVE-2026-54082

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