CVE-2026-34071

Description

Stirling-PDF is a locally hosted web application that allows you to perform various operations on PDF files. In version 2.7.3, the /api/v1/convert/eml/pdf endpoint with parameter downloadHtml=true returns unsanitized HTML from the email body with Content-Type: text/html. An attacker who sends a malicious email to a Stirling-PDF user can achieve JavaScript execution when that user exports the email using the "Download HTML intermediate file" feature. Version 2.8.0 fixes the issue.

PUBLISHED Reserved 2026-03-25 | Published 2026-03-26 | Updated 2026-03-26 | Assigner GitHub_M

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

References

github.com/...ng-PDF/security/advisories/GHSA-xmhg-fv84-jgfc

cve.org (CVE-2026-34071)

nvd.nist.gov (CVE-2026-34071)

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