PatchSiren cyber security CVE debrief
CVE-2026-54082 veraPDF CVE debrief
The veraPDF validation model, used for validating PDF files, contains an XML External Entity (XXE) vulnerability. This vulnerability affects versions 1.25.73 through 1.30.2 and 1.31.71. The issue allows for local file disclosure and outbound network requests when parsing rich-text annotations or form-field values and XFA configurations in untrusted PDFs. The vulnerability is fixed in versions 1.30.2 and 1.31.71.
- Vendor
- veraPDF
- Product
- veraPDF-validation
- CVSS
- MEDIUM 6.5
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-29
- Original CVE updated
- 2026-10-23
- Advisory published
- 2026-07-29
- Advisory updated
- 2026-10-23
Who should care
Defenders responsible for PDF validation and processing, developers using veraPDF validation model in their applications, and security teams should assess exposure and verify versions. They should also restrict parsing of untrusted PDFs, monitor for suspicious network requests and file access, and prioritize verifying and updating veraPDF validation model versions to prevent potential local file disclosure and unauthorized network requests.
Why it matters
The veraPDF validation model XXE vulnerability allows for local file disclosure and outbound network requests, requiring defenders to verify and update versions, restrict parsing of untrusted PDFs, and monitor for suspicious activity.
- Potential local file disclosure
- Potential outbound network requests
- Verification of veraPDF validation model versions
- Monitoring for suspicious activity
Technical summary
The veraPDF validation model contains an XML External Entity (XXE) vulnerability in versions 1.25.73 through 1.30.2 and 1.31.71. This allows for local file disclosure and outbound network requests when parsing rich-text annotations or form-field values and XFA configurations in untrusted PDFs. The issue is fixed in versions 1.30.2 and 1.31.71. Defenders should prioritize verifying and updating veraPDF validation model versions to prevent potential local file disclosure and unauthorized network requests. The vulnerability affects PDF validation and processing, requiring defenders to verify and update versions, restrict parsing of untrusted PDFs, and monitor for suspicious activity.
Defensive priority
Defenders should prioritize verifying and updating veraPDF validation model versions to prevent potential local file disclosure and unauthorized network requests.
Recommended defensive actions
- Verify and update veraPDF validation model versions to 1.30.2 or 1.31.71
- Restrict parsing of untrusted PDFs
- Monitor for suspicious network requests and file access
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
- Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
- Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
- Check relevant monitoring, detection, and logs for exposed assets that need extra review.
Evidence notes
The CVE record and NVD entry provide details on the vulnerability, affected versions, and fixed versions. However, there is limited information on actual exploitation or victim impact. Defenders should verify and update veraPDF validation model versions to prevent potential local file disclosure and unauthorized network requests. The veraPDF validation model contains an XML External Entity (XXE) vulnerability in versions 1.25.73 through 1.30.2 and 1.31.71. This allows for local file disclosure and outbound network requests when ...
Sources and references
Verified primary and authoritative sources
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CVE-2026-54082 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-54082
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-54082 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-54082
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
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Source reference
Unverified legacy reference
URL: https://github.com/veraPDF/veraPDF-validation/commit/94caa46c1a594512247fbd46c808edae39469542
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Source reference
Unverified legacy reference
URL: https://github.com/veraPDF/veraPDF-validation/commit/cacd9436d0de40b0e58cc7d2dbb06451619e61ec
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Source reference
Unverified legacy reference
URL: https://github.com/veraPDF/veraPDF-validation/pull/730
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Source reference
Unverified legacy reference
URL: https://github.com/veraPDF/veraPDF-validation/security/advisories/GHSA-cg9x-g3gm-h5h6
Methodology and review provenance
AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.