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Directory Traversal Affecting keep package, versions <0.54.3-r1

Severity

 Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
2.46% (84th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-KEEP-19684652
  • published11 Sept 2026
  • disclosed1 Sept 2026
Report a new vulnerability Found a mistake?

Introduced: 1 Sep 2026

NewCVE-2026-75604  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Chainguard keep to version 0.54.3-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream keep package and not the keep package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Next.js is a React framework for building full-stack web applications. From 13.4.0 until 15.5.24 and 16.3.3, Next.js applications using Pages Router or App Router without Cache Components on Windows-hosted servers do not consistently escape backslashes in route segments before constructing incremental-cache paths. In packages/next/src/shared/lib/router/utils/escape-path-delimiters.ts and packages/next/src/server/lib/incremental-cache/file-system-cache.ts, a remote request can supply encoded Windows path separators that traverse outside the intended cache root and expose private build data, including the server-reference-manifest encryption key. Disclosure of that key can enable remote code execution in the affected application. This issue is fixed in versions 15.5.24 and 16.3.3.