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CVE-2026-48529 GitHub MCP Server: Lockdown mode singleton in HTTP server causes cross-user GraphQL client confusion

🗓️ 26 Jun 2026 16:33:32Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 1 Views

Web lockdown mode uses a global RepoAccessCache with the first GraphQL client, leaking credentials; fixed in 1.1.2.

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