Overly Permissive Cross-domain Whitelist Affecting mcp-context7 package, versions *
Threat Intelligence
This vulnerability is trending on Twitter; this may indicate a growing threat.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-MCPCONTEXT7-17496745
- published26 Jun 2026
- disclosed22 Jun 2026
Introduced: 22 Jun 2026
CVE-2026-54290 (opens in a new tab)How to fix?
There is no fixed version for Minimos:latest mcp-context7.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mcp-context7 package and not the mcp-context7 package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, with credentials: true and no explicit origin (the default wildcard), the CORS Middleware reflects the request's Origin and sends Access-Control-Allow-Credentials: true. Any site can then make credentialed cross-origin requests and read the responses, exposing cookie-authenticated endpoints to arbitrary origins. This vulnerability is fixed in 4.12.25.