react-pdf vulnerable to arbitrary JavaScript execution upon opening a malicious PDF with PDF.js
Summary
If PDF.js is used to load a malicious PDF, and PDF.js is configured with isEvalSupported set to true (which is the default value), unrestricted attacker-controlled JavaScript will be executed in the context of the hosting domain.
Patches
This patch forces isEvalSupported to false, removing the attack vector.
Workarounds
Set options.isEvalSupported to false, where options is Document component prop.
References
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | react-pdf | < 7.7.3, >= 8.0.0, < 8.0.2 | 7.7.3, 8.0.2 |
References
- https://github.com/mozilla/pdf.js/security/advisories/GHSA-wgrm-67xf-hhpq
- https://github.com/wojtekmaj/react-pdf/security/advisories/GHSA-87hq-q4gp-9wr4
- https://nvd.nist.gov/vuln/detail/CVE-2024-34342
- https://github.com/mozilla/pdf.js/pull/18015
- https://github.com/mozilla/pdf.js/commit/85e64b5c16c9aaef738f421733c12911a441cec6
- https://github.com/wojtekmaj/react-pdf/commit/208f28dd47fe38c33ce4bac4205b2b0a0bb207fe
- https://github.com/wojtekmaj/react-pdf/commit/671e6eaa2e373e404040c13cc6b668fe39839cad
- https://github.com/wojtekmaj/react-pdf
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L- Weakness (CWE)
CWE-79- Platform
- npm
- Package
react-pdf- Disclosed
- 07.05.2024
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-87hq-q4gp-9wr4 - CC BY 4.0
Vulnerability history: react-pdf
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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