Fallow: Jest and Vitest `projects` entries let an analyzed repository make Fallow read files outside the project root
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.
CVE-2026-115569
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-115569
fallow
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
fallow-node
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
fallow-cli
Source reference: /containers/cna/affected/2/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
fallow-core
Source reference: /containers/cna/affected/3/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "fallow-rs",
"product": "fallow",
"versions": [
{
"status": "affected",
"version": ">= 2.68.0, < 3.34.0"
}
]
},
{
"vendor": "@fallow-cli",
"product": "fallow-node",
"versions": [
{
"status": "affected",
"version": ">= 2.68.0, < 3.34.0"
}
]
},
{
"vendor": "fallow-rs",
"product": "fallow-cli",
"versions": [
{
"status": "affected",
"version": ">= 2.68.0, < 3.34.0"
}
]
},
{
"vendor": "fallow-rs",
"product": "fallow-core",
"versions": [
{
"status": "affected",
"version": ">= 2.68.0, < 3.34.0"
}
]
}
]- Related CVEs
- CVE-2026-115569
Source reference:
/cveMetadata/cveId
Publisher severity
low
Source reference: /containers/cna/metrics
- Event
- #53094 · Revision 1
- Added to Heist Feed
- Publisher date