CVE-2026-115569
Fallow: Jest and Vitest `projects` entries let an analyzed repository make Fallow read files outside the project root
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CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Attack conditions and impact
Derived from the CNA (via NVD) CVSS 3.1 vector| Metric | Value | Meaning |
|---|---|---|
| Attack vector AV | L | Local |
| Attack complexity AC | L | Low (easy) |
| Privileges required PR | N | None |
| User interaction UI | R | Required |
| Scope S | U | Unchanged |
| Confidentiality C | L | Low |
| Integrity I | N | None |
| Availability A | N | None |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
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.
CVSS assessments
| Provider | Version | Score | Vector |
|---|---|---|---|
| NVD / [email protected] (Secondary) | 3.1 | 3.3 LOW | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
| CNA / GitHub_M | 3.1 | 3.3 LOW | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
Affected products and packages
CNA (CVE.org)
| Vendor | Product | Versions |
|---|---|---|
| fallow-rs | fallow | affected: >= 2.68.0, < 3.34.0 |
| @fallow-cli | fallow-node | affected: >= 2.68.0, < 3.34.0 |
| fallow-rs | fallow-cli | affected: >= 2.68.0, < 3.34.0 |
| fallow-rs | fallow-core | affected: >= 2.68.0, < 3.34.0 |
Open-source packages (GitHub Advisory / OSV)
Fallow: Jest and Vitest `projects` entries let an analyzed repository make Fallow read files outside the project root
| Ecosystem | Package | Affected versions | Fixed in |
|---|---|---|---|
| npm | fallow | >= 2.68.0, < 3.34.0 | 3.34.0 |
| npm | @fallow-cli/fallow-node | >= 2.68.0, < 3.34.0 | 3.34.0 |
| crates.io | fallow-cli | >= 2.68.0, < 3.34.0 | 3.34.0 |
| crates.io | fallow-core | >= 2.68.0, < 3.34.0 | 3.34.0 |
Linux distribution status
References (6)
- https://github.com/advisories/GHSA-jfwm-3p3c-6hx5 GHSA
- https://github.com/fallow-rs/fallow/commit/75c0c60948a53ddfe042e65b446343989f4c5649 NVD, CNA, GHSA x_refsource_MISC
- https://github.com/fallow-rs/fallow/pull/3556 NVD, CNA, GHSA x_refsource_MISC
- https://github.com/fallow-rs/fallow/releases/tag/v3.34.0 NVD, CNA, GHSA x_refsource_MISC
- https://github.com/fallow-rs/fallow/security/advisories/GHSA-jfwm-3p3c-6hx5 NVD, CNA, GHSA x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-115569 GHSA