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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://github.com/veraPDF/veraPDF-validation/commit/94caa46c1a594512247fbd46c8…
security-advisories@github.com
https://github.com/veraPDF/veraPDF-validation/commit/cacd9436d0de40b0e58cc7d2db…
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-w85…
security-advisories@github.com