CVE-2026-123829 Affecting nodejs package, versions <22.23.5-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALPINE321-NODEJS-22422958
- published12 Nov 2026
- disclosed11 Nov 2026
Introduced: 11 Nov 2026
NewCVE-2026-123829 (opens in a new tab)How to fix?
Upgrade Alpine:3.21 nodejs to version 22.23.5-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream nodejs package and not the nodejs package as distributed by Alpine.
See How to fix? for Alpine:3.21 relevant fixed versions and status.
A Permission Model bypass in Node.js recursive file watching discloses the names of files and directories the process is not permitted to read. On macOS and Windows, fs.watch() and fs.promises.watch() in recursive mode are backed by the native libuv watcher: FSEventWrap::Start checks kFileSystemRead only once, on the watched root, and FSEventWrap::OnEvent then forwards every filename libuv reports (relative paths at any depth) to the JavaScript callback without checking that each path is covered by the read grant. Code running under --permission with an exact read grant on a directory can therefore learn names such as sub/secret.txt even though readdir on that subdirectory is denied. The flaw exposes names and timing metadata, not file contents, and requires macOS or Windows plus files created under the watched directory by another actor. This vulnerability affects Node.js 26.x, 24.x, and 22.x.