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GHSA-PJP5-FPMR-3349 GitHub MCP Server: Lockdown mode singleton in HTTP server causes cross-user GraphQL client confusion

🗓️ 25 Jun 2026 21:32:09Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 3 Views

Lockdown mode uses a single process-wide RepoAccessCache with the first user token, affecting later requests.

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07 Jul 2026 16:11Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.16
EPSS0.00205
3