# Fallow: A \`.\*\` glob segment let an analyzed repository make Fallow test paths in the parent of the project root

Advisory record · `GHSA-h4fr-cmh5-qr62`

- **Identifiers:** `GHSA-h4fr-cmh5-qr62`
- **State:** Confirmed
- **Severity:** CVSS 3.3 Low
- **Critical:** No
- **Weakness (CWE):** [CWE-22](https://cwe.mitre.org/data/definitions/22.html)
- **Tags:** [Path traversal](https://agentprime.io/advisories/tag/path-traversal.md)
- **Published:** 23 Oct 2026
- **Updated:** 23 Oct 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 23 Oct 2026, 21:58 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `fallow` (npm): affected `<3.34.0`; fixed in `3.34.0`
- `@fallow-cli/fallow-node` (npm): affected `<3.34.0`; fixed in `3.34.0`
- `fallow-cli` (crates.io): affected `<3.34.0`; fixed in `3.34.0`
- `fallow-config` (crates.io): affected `<3.34.0`; fixed in `3.34.0`
- `fallow-core` (crates.io): affected `<3.34.0`; fixed in `3.34.0`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 3.3 Low, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** No score.

## Timeline

- 31 Oct 2026, 13:33 UTC: First seen by agentprime
- 31 Oct 2026, 13:33 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-h4fr-cmh5-qr62)

## Sources

- [GitHub Advisory Database: GHSA-h4fr-cmh5-qr62](https://github.com/advisories/GHSA-h4fr-cmh5-qr62)
- [OSV: GHSA-h4fr-cmh5-qr62](https://osv.dev/vulnerability/GHSA-h4fr-cmh5-qr62)
- <https://github.com/fallow-rs/fallow/security/advisories/GHSA-h4fr-cmh5-qr62>
- <https://github.com/fallow-rs/fallow/pull/3548>
- <https://github.com/fallow-rs/fallow/commit/133d4c862c74f4b1f0a7417c65b7157c1144294d>
- <https://github.com/fallow-rs/fallow>
- <https://github.com/fallow-rs/fallow/releases/tag/v3.34.0>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-h4fr-cmh5-qr62>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-h4fr-cmh5-qr62/>. Everything for agents: <https://agentprime.io/llms.txt>.