Description
open 7.2.0 before 11.0.0 contains an OS command injection vulnerability that allows attackers to execute PowerShell code by supplying crafted URLs on Windows and WSL. Attackers can embed $(...) subexpressions in URLs, such as OAuth authorization_endpoint values from malicious MCP servers, which execute when index.js passes them unescaped to powershell -EncodedCommand.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| sindresorhus | open | >= 7.2.0, < 11.0.0 |
| modelcontextprotocol | inspector | >= 2.0.0, < 2.12.0 |
| anomalyco | opencode | >= 1.0.137, < 1.18.33 |
References
- https://github.com/anomalyco/opencode/commit/29f07e0c69ad8668e0e15b0eb54f2fcb342af98c
- https://github.com/anomalyco/opencode/pull/51414
- https://github.com/modelcontextprotocol/inspector/security/advisories/GHSA-q978-78c7-phqw
- https://github.com/sindresorhus/open/blob/v10.2.0/index.js#L189-L203
- https://github.com/sindresorhus/open/blob/v7.2.0/index.js#L60-L99
- https://github.com/sindresorhus/open/commit/274d70446bf38a7b7d50b214dd3962ef8ea9320d
- https://github.com/sindresorhus/open/releases/tag/v11.0.0
- https://www.vulncheck.com/advisories/open-7.2.0-before-11.0.0-os-command-injection-via-powershell-on-windows
Timeline
- Published
- Oct 29, 2026
- Last modified
- Nov 3, 2026
- NVD status
- Awaiting Analysis