CVE-2024-34342
CVE-2024-34342 is a high-severity vulnerability with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: High (CVSS 3.x base score 7.1)
- EPSS exploit prediction: 1% (61st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-1513
- Weakness: CWE-79
- Published:
- Last modified:
Description
react-pdf displays PDFs in React apps. 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. This vulnerability is fixed in 7.7.3 and 8.0.2.
Frequently asked questions
- What is CVE-2024-34342?
- react-pdf displays PDFs in React apps. 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. This vulnerability is fixed in 7.7.3 and 8.0.2.
- How severe is CVE-2024-34342?
- CVE-2024-34342 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.
- Is CVE-2024-34342 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2024-34342?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2024-34342 have an EU (EUVD) identifier?
- Yes. CVE-2024-34342 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-1513.
- When was CVE-2024-34342 published?
- CVE-2024-34342 was published on 2024-05-07 and last updated on 2026-06-17.
References
- https://github.com/mozilla/pdf.js/commit/85e64b5c16c9aaef738f421733c12911a441cec6
- https://github.com/mozilla/pdf.js/pull/18015
- https://github.com/mozilla/pdf.js/security/advisories/GHSA-wgrm-67xf-hhpq
- https://github.com/wojtekmaj/react-pdf/commit/208f28dd47fe38c33ce4bac4205b2b0a0bb207fe
- https://github.com/wojtekmaj/react-pdf/commit/671e6eaa2e373e404040c13cc6b668fe39839cad
- https://github.com/wojtekmaj/react-pdf/security/advisories/GHSA-87hq-q4gp-9wr4
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