Directory Traversal Affecting next package, versions >=13.4.1-canary.0 <15.5.24>=16.0.0-beta.0 <16.3.3
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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Test your applications- Snyk IDSNYK-JS-NEXT-19269946
- published26 Aug 2026
- disclosed26 Aug 2026
- creditB0RI, evolutionstorm
Introduced: 26 Aug 2026
NewCVE-2026-75604 (opens in a new tab)How to fix?
Upgrade next to version 15.5.24, 16.3.3 or higher.
Overview
next is a react framework.
Affected versions of this package are vulnerable to Directory Traversal in FileSystemCache.getFilePath in packages/next/src/server/lib/incremental-cache/file-system-cache.ts. An attacker can trigger remote code execution on a Windows-hosted server by sending a request that causes the incremental cache to resolve a crafted cache key containing backslashes outside the intended cache directory. When Pages Router or App Router code runs without Cache Components on Windows, the cache path handling can write or read files outside the cache root, letting the attacker influence server-side files that the application later executes.