Vulnerability Intelligence Report
Nx: `nx graph` dev server permissive CORS policy
CVE-2026-54753
Nx is a monorepo solution for TypeScript and polyglot codebases. From 17.0.4 until 22.7.2 and 23.0.0-beta.2, the local HTTP server started by nx graph sent Access-Control-Allow-Origin: * on every response, letting any website a developer visited read the server's responses cross-origin — including the full project graph and the output of the /help endpoint, which runs a target's configured help command. The practical impact is typically cross-origin information disclosure, but can be arbitrary command injection in rare cases. This vulnerability is fixed in 22.7.2 and 23.0.0-beta.2.
No Active Exploit Signals
CVSS Base Score
5.9
MEDIUM
Exploitability:1.7
Impact Score:4.3
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
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Weaknesses (CWE)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| nrwl | nx | >= 17.0.4, < 22.7.2 (affected), >= 23.0.0-beta.0, < 23.0.0-beta.2 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | GitHub, Inc. · Vendor · USA |
| Reserved | 2026-06-15T23:12:41 |
| Published | 2026-06-26T18:13:34 |
| Last Updated | 2026-06-26T19:09:33 |
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