Directory Traversal Affecting langfuse-4 package, versions <4.68.0-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-CHAINGUARDLATEST-LANGFUSE4-21493270
- published23 Oct 2026
- disclosed20 Oct 2026
Introduced: 20 Oct 2026
NewCVE-2026-112950 (opens in a new tab)How to fix?
Upgrade Chainguard langfuse-4 to version 4.68.0-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream langfuse-4 package and not the langfuse-4 package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
Vitest is a Vite-native testing framework for JavaScript and TypeScript projects. From 4.1.11 until 4.1.12 and 5.0.3, isFileLoadingAllowed and the filesystem read interpret backslashes differently on Windows in packages/mocker/src/node/interceptorPlugin.ts. When a client can reach the Vite dev server on Windows and register a redirect mock containing backslash traversal, POSIX joining preserves a Windows backslash traversal that the later filesystem read interprets as a path separator, so the client can read a file outside server.fs.allow that the Vitest process can access. This issue is fixed in versions 4.1.12 and 5.0.3.
References
- https://github.com/vitest-dev/vitest/commit/15cc006aa9f8683dc5f7e895d011fa7dc751ce35
- https://github.com/vitest-dev/vitest/commit/b825313243dc55757e8d7c0f9e7a792135e13473
- https://github.com/vitest-dev/vitest/releases/tag/v4.1.12
- https://github.com/vitest-dev/vitest/releases/tag/v5.0.3
- https://github.com/vitest-dev/vitest/security/advisories/GHSA-xp26-3454-mjgp