Fallow is a codebase intelligence tool for TypeScript and JavaScript. From 2.68.0 until 3.34.0, Fallow follows attacker-controlled Jest projects paths outside the project root through absolute paths, parent segments, dot-prefixed wildcard globs, or symlinks. In version 3.33.1, the same behavior also affects Vitest test.projects paths, Vitest inline-project extends paths, and symlinked script --config paths. Fallow parses the outside files as test-runner configuration and uses them to credit dependencies, setup files, and JSX import sources, which can change unused dependency and unused file findings in CI or agent analysis. The outside file contents are not printed or sent over the network. This issue is fixed in version 3.34.0.
History

Tue, 10 Nov 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 26 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
First Time appeared Fallow-rs
Fallow-rs fallow
Fallow-rs fallow-cli
Fallow-rs fallow-core
Fallow-rs fallow-node
Vendors & Products Fallow-rs
Fallow-rs fallow
Fallow-rs fallow-cli
Fallow-rs fallow-core
Fallow-rs fallow-node

Fri, 23 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Description Fallow is a codebase intelligence tool for TypeScript and JavaScript. From 2.68.0 until 3.34.0, Fallow follows attacker-controlled Jest projects paths outside the project root through absolute paths, parent segments, dot-prefixed wildcard globs, or symlinks. In version 3.33.1, the same behavior also affects Vitest test.projects paths, Vitest inline-project extends paths, and symlinked script --config paths. Fallow parses the outside files as test-runner configuration and uses them to credit dependencies, setup files, and JSX import sources, which can change unused dependency and unused file findings in CI or agent analysis. The outside file contents are not printed or sent over the network. This issue is fixed in version 3.34.0.
Title Fallow: Jest and Vitest `projects` entries let an analyzed repository make Fallow read files outside the project root
Weaknesses CWE-22
CWE-59
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-10-23T18:09:47.722Z

Updated: 2026-10-30T19:18:24.488Z

Reserved: 2026-10-22T22:53:15.237Z

Link: CVE-2026-115569

cve-icon Vulnrichment

Updated: 2026-10-30T19:18:21.225Z

cve-icon NVD

Status : Deferred

Published: 2026-10-23T19:17:44.320

Modified: 2026-10-30T20:17:01.853

Link: CVE-2026-115569

cve-icon Redhat

No data.