Untrusted Search Path Affecting @pnpm/fetching.binary-fetcher package, versions <1005.0.2
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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Start learning- Snyk IDSNYK-JS-PNPMFETCHINGBINARYFETCHER-15116158
- published27 Jan 2026
- disclosed26 Jan 2026
- creditmldangelo
Introduced: 26 Jan 2026
CVE-2026-23888 (opens in a new tab)How to fix?
Upgrade @pnpm/fetching.binary-fetcher to version 1005.0.2 or higher.
Overview
@pnpm/fetching.binary-fetcher is a fetcher for binary archives
Affected versions of this package are vulnerable to Untrusted Search Path via the extractZipToTarget function and the use of unvalidated prefix values. An attacker can overwrite arbitrary files on the file system by supplying malicious ZIP archives with crafted paths or by manipulating the prefix field to escape the intended extraction directory.
Note: Exploitation requires the attacker to publish and convince the user to install a malicious package.