{"id":"CVE-2024-34342","aliases":["GHSA-87hq-q4gp-9wr4"],"url":"https://o3.security/vulnerability/CVE-2024-34342","summary":"react-pdf's PDF.js vulnerable to arbitrary JavaScript execution upon opening a malicious PDF","details":"### Summary\n\nIf 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.\n\n### Patches\n[This patch](https://github.com/wojtekmaj/react-pdf/commit/671e6eaa2e373e404040c13cc6b668fe39839cad) forces `isEvalSupported` to `false`, removing the attack vector.\n\n### Workarounds\nSet `options.isEvalSupported` to `false`, where `options` is `Document` component prop.\n\n### References\n- [GHSA-wgrm-67xf-hhpq](https://github.com/mozilla/pdf.js/security/advisories/GHSA-wgrm-67xf-hhpq)\n- https://github.com/mozilla/pdf.js/pull/18015\n- https://github.com/mozilla/pdf.js/commit/85e64b5c16c9aaef738f421733c12911a441cec6\n- https://bugzilla.mozilla.org/show_bug.cgi?id=1893645","published":"2024-05-07T14:29:06.599Z","modified":"2026-10-28T02:31:06.828299192Z","cvss":{"score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"react-pdf","fixedVersion":"7.7.3"},{"ecosystem":"npm","name":"react-pdf","fixedVersion":"8.0.2"}],"fix":{"url":"https://github.com/mozilla/pdf.js/commit/85e64b5c16c9aaef738f421733c12911a441cec6","label":"mozilla/pdf.js@85e64b5"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/34xxx/CVE-2024-34342.json"},{"type":"ADVISORY","url":"https://github.com/mozilla/pdf.js/security/advisories/GHSA-wgrm-67xf-hhpq"},{"type":"ADVISORY","url":"https://github.com/wojtekmaj/react-pdf/security/advisories/GHSA-87hq-q4gp-9wr4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-34342"},{"type":"FIX","url":"https://github.com/mozilla/pdf.js/commit/85e64b5c16c9aaef738f421733c12911a441cec6"},{"type":"FIX","url":"https://github.com/mozilla/pdf.js/pull/18015"},{"type":"FIX","url":"https://github.com/wojtekmaj/react-pdf/commit/208f28dd47fe38c33ce4bac4205b2b0a0bb207fe"},{"type":"FIX","url":"https://github.com/wojtekmaj/react-pdf/commit/671e6eaa2e373e404040c13cc6b668fe39839cad"},{"type":"PACKAGE","url":"https://github.com/wojtekmaj/react-pdf"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:31:06.828299192Z"}}