https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-19T01:55:05.703167+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-158720 EUVD-2026-158720 2026-10-19T01:55:05.705410+00:00 EUVD-2026-158720 https://cve.radiocsirt.org/vuln/fkie_cve-2024-43373 fkie_cve-2024-43373 2026-10-19T01:55:05.705442+00:00

webcrack is a tool for reverse engineering javascript. An arbitrary file write vulnerability exists in the webcrack module when processing specifically crafted malicious code on Windows systems. This vulnerability is triggered when using the unpack bundles feature in conjunction with the saving feature. If a module name includes a path traversal sequence with Windows path separators, an attacker can exploit this to overwrite files on the host system. This vulnerability allows an attacker to write arbitrary `.js` files to the host system, which can be leveraged to hijack legitimate Node.js modules to gain arbitrary code execution. This vulnerability has been patched in version 2.14.1.

 https://cve.radiocsirt.org/vuln/ghsa-ccqh-278p-xq6w GHSA-ccqh-278p-xq6w — webcrack has an Arbitrary File Write Vulnerability on Windows when Parsing and Saving a Malicious Bundle 2026-10-19T01:55:05.705474+00:00

Affected: npm: webcrack

### Summary An arbitrary file write vulnerability exists in the webcrack module when processing specifically crafted malicious code on Windows systems. This vulnerability is triggered when using the unpack bundles feature in conjunction with the saving feature. If a module name includes a path traversal sequence with Windows path separators, an attacker can exploit this to overwrite files on the host system.

### Details

Source: [packages/webcrack/src/unpack/bundle.ts#L79](https://github.com/j4k0xb/webcrack/blob/241f9469e6401f3dabc6373233d85a5e76966b54/packages/webcrack/src/unpack/bundle.ts#L79) ```ts import { posix } from 'node:path'; import type { Module } from './module';

// eslint-disable-next-line @typescript-eslint/unbound-method const { dirname, join, normalize } = posix;

/* ... snip ... */

const modulePath = normalize(join(path, module.path)); if (!modulePath.startsWith(path)) { throw new Error(`detected path traversal: ${module.path}`); } await mkdir(dirname(modulePath), { recursive: true }); await writeFile(modulePath, module.code, 'utf8'); ```

In this code, the application explicitly relies on the POSIX version of path utilities (`dirname`, `join`, `normalize`) from Node.js. However, the vulnerability arises because the POSIX version of the `normalize` function does not recognize `\` as a path separator. As a result, on Windows systems, the path traversal check fails, allowing an attacker to write files to unintended locations.

### PoC The following…