CVE-2026-119025
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
Oct 29, 2026
Vendor
unknown
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.
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