# CVE-2023-39332: Node.js 20: Various `node:fs` functions allow specifying paths as either strings or `Uint8Array` objects. CVE-2023-39332 is fixed in 9 products on 2 platforms, first by Node.js 20 20.9.0, released October 24, 2023. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2023-39332 - Priority: High - CVSS: 9.8 (Important) - EPSS: 0.0219 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Oct 18, 2023 - Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-39332 ## Description Various `node:fs` functions allow specifying paths as either strings or `Uint8Array` objects. In Node.js environments, the `Buffer` class extends the `Uint8Array` class. Node.js prevents path traversal through strings (see CVE-2023-30584) and `Buffer` objects (see CVE-2023-32004), but not through non-`Buffer` `Uint8Array` objects. This is distinct from CVE-2023-32004 which only referred to `Buffer` objects. However, the vulnerability follows the same pattern using `Uint8Array` instead of `Buffer`. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Windows apps | Node.js 20 | 20.9.0 | [Node.js 20 20.9.0](https://patchblox.com/security/data/fix/windows-app/openjs.nodejs.20-20.9.0.md) | Oct 24, 2023 | | Linux | nodejs RHEL 8 | 1:20.8.1-1.module+el8.9.0+20473+c4e3d824 | [RHSA-2023:7205](https://patchblox.com/security/data/fix/linux/rhsa-2023-7205.md) | Nov 14, 2023 | | Linux | nodejs almalinux 8 | 1:20.8.1-1.module_el8.9.0+3675+0258a6d9 | [ALSA-2023:7205](https://patchblox.com/security/data/fix/linux/alsa-2023-7205.md) | Nov 14, 2023 | | Linux | nodejs ol 8 | 1:20.8.1-1.module+el8.9.0+90082+b6a613a6 | [ELSA-2023-7205](https://patchblox.com/security/data/fix/linux/elsa-2023-7205.md) | Nov 22, 2023 | | Linux | nodejs-devel RHEL 8 | 1:20.8.1-1.module+el8.9.0+20473+c4e3d824 | [RHSA-2023:7205](https://patchblox.com/security/data/fix/linux/rhsa-2023-7205.md) | Nov 14, 2023 | | Linux | nodejs-devel almalinux 8 | 1:20.8.1-1.module_el8.9.0+3675+0258a6d9 | [ALSA-2023:7205](https://patchblox.com/security/data/fix/linux/alsa-2023-7205.md) | Nov 14, 2023 | | Linux | nodejs-devel ol 8 | 1:20.8.1-1.module+el8.9.0+90082+b6a613a6 | [ELSA-2023-7205](https://patchblox.com/security/data/fix/linux/elsa-2023-7205.md) | Nov 22, 2023 | | Linux | nodejs-docs RHEL 8 | 1:20.8.1-1.module+el8.9.0+20473+c4e3d824 | [RHSA-2023:7205](https://patchblox.com/security/data/fix/linux/rhsa-2023-7205.md) | Nov 14, 2023 | | Linux | nodejs-docs almalinux 8 | 1:20.8.1-1.module_el8.9.0+3675+0258a6d9 | [ALSA-2023:7205](https://patchblox.com/security/data/fix/linux/alsa-2023-7205.md) | Nov 14, 2023 | | Linux | nodejs-docs ol 8 | 1:20.8.1-1.module+el8.9.0+90082+b6a613a6 | [ELSA-2023-7205](https://patchblox.com/security/data/fix/linux/elsa-2023-7205.md) | Nov 22, 2023 | | Linux | nodejs-full-i18n RHEL 8 | 1:20.8.1-1.module+el8.9.0+20473+c4e3d824 | [RHSA-2023:7205](https://patchblox.com/security/data/fix/linux/rhsa-2023-7205.md) | Nov 14, 2023 | | Linux | nodejs-full-i18n almalinux 8 | 1:20.8.1-1.module_el8.9.0+3675+0258a6d9 | [ALSA-2023:7205](https://patchblox.com/security/data/fix/linux/alsa-2023-7205.md) | Nov 14, 2023 | | Linux | nodejs-full-i18n ol 8 | 1:20.8.1-1.module+el8.9.0+90082+b6a613a6 | [ELSA-2023-7205](https://patchblox.com/security/data/fix/linux/elsa-2023-7205.md) | Nov 22, 2023 | | Linux | nodejs-nodemon RHEL 8 | 0:3.0.1-1.module+el8.9.0+20473+c4e3d824 | [RHSA-2023:7205](https://patchblox.com/security/data/fix/linux/rhsa-2023-7205.md) | Nov 14, 2023 | | Linux | nodejs-nodemon almalinux 8 | 3.0.1-1.module_el8.9.0+3675+0258a6d9 | [ALSA-2023:7205](https://patchblox.com/security/data/fix/linux/alsa-2023-7205.md) | Nov 14, 2023 | | Linux | nodejs-nodemon ol 8 | 0:3.0.1-1.module+el8.9.0+90082+b6a613a6 | [ELSA-2023-7205](https://patchblox.com/security/data/fix/linux/elsa-2023-7205.md) | Nov 22, 2023 | | Linux | nodejs-nodemon rocky 8 | 0:3.0.1-1.module+el8.8.0+1459+02651ab6 | [RLSA-2023:7205](https://patchblox.com/security/data/fix/linux/rlsa-2023-7205.md) | Nov 28, 2023 | | Linux | nodejs-packaging RHEL 8 | 0:2021.06-4.module+el8.9.0+19519+e25b965a | [RHSA-2023:7205](https://patchblox.com/security/data/fix/linux/rhsa-2023-7205.md) | Nov 14, 2023 | | Linux | nodejs-packaging almalinux 8 | 2021.06-4.module_el8.9.0+3684+11b9e959 | [ALSA-2023:7205](https://patchblox.com/security/data/fix/linux/alsa-2023-7205.md) | Nov 14, 2023 | | Linux | nodejs-packaging ol 8 | 0:2021.06-4.module+el8.9.0+90082+b6a613a6 | [ELSA-2023-7205](https://patchblox.com/security/data/fix/linux/elsa-2023-7205.md) | Nov 22, 2023 | | Linux | nodejs-packaging rocky 8 | 0:2021.06-4.module+el8.7.0+1072+5b168780 | [RLSA-2023:7205](https://patchblox.com/security/data/fix/linux/rlsa-2023-7205.md) | Nov 28, 2023 | | Linux | nodejs-packaging-bundler RHEL 8 | 0:2021.06-4.module+el8.9.0+19519+e25b965a | [RHSA-2023:7205](https://patchblox.com/security/data/fix/linux/rhsa-2023-7205.md) | Nov 14, 2023 | | Linux | nodejs-packaging-bundler almalinux 8 | 2021.06-4.module_el8.9.0+3684+11b9e959 | [ALSA-2023:7205](https://patchblox.com/security/data/fix/linux/alsa-2023-7205.md) | Nov 14, 2023 | | Linux | nodejs-packaging-bundler ol 8 | 0:2021.06-4.module+el8.9.0+90082+b6a613a6 | [ELSA-2023-7205](https://patchblox.com/security/data/fix/linux/elsa-2023-7205.md) | Nov 22, 2023 | | Linux | npm RHEL 8 | 1:10.1.0-1.20.8.1.1.module+el8.9.0+20473+c4e3d824 | [RHSA-2023:7205](https://patchblox.com/security/data/fix/linux/rhsa-2023-7205.md) | Nov 14, 2023 | | Linux | npm almalinux 8 | 1:10.1.0-1.20.8.1.1.module_el8.9.0+3675+0258a6d9 | [ALSA-2023:7205](https://patchblox.com/security/data/fix/linux/alsa-2023-7205.md) | Nov 14, 2023 | | Linux | npm ol 8 | 1:10.1.0-1.20.8.1.1.module+el8.9.0+90082+b6a613a6 | [ELSA-2023-7205](https://patchblox.com/security/data/fix/linux/elsa-2023-7205.md) | Nov 22, 2023 | --- Data as of 2026-11-08T19:12:23Z UTC. 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