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Vulnerabilities

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Severity
Critical Severity
CVSS Score Range: 9.0–10.0
Critical severity vulnerabilities (CVSS 9.0–10.0). These represent the highest impact issues.
High Severity
CVSS Score Range: 7.0–8.9
High severity vulnerabilities (CVSS 7.0–8.9). Serious vulnerabilities that should be prioritized soon after critical fixes.
Medium Severity
CVSS Score Range: 4.0–6.9
Medium severity vulnerabilities (CVSS 4.0–6.9). Important issues that meaningfully reduce security confidence.
Low Severity
CVSS Score Range: < 4.0
Low severity vulnerabilities (CVSS < 4.0). Hygiene issues that can accumulate but pose lower immediate risk.
Unknown Severity
CVSS Score Range: No score
Vulnerabilities without an assigned CVSS score. Severity is not determinable from available data.
Package Summary Severity Published Modified
@modelcontextprotocol/sdk MCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server High Risk 7.5 5 hours ago 4 hours ago
@modelcontextprotocol/sdk Anthropic's MCP TypeScript SDK has a ReDoS vulnerability High Risk 8.0 9 months ago 26 days ago
@modelcontextprotocol/sdk @modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse High Risk 7.1 8 months ago 26 days ago
@modelcontextprotocol/sdk Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default High Risk 8.0 10 months ago 26 days ago
Data courtesy of OSV.dev
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