VDB
GHSA-w2fm-25vw-vh7f
GHSA-w2fm-25vw-vh7f
PUBLISHED
CVSS 7.099999904632568 HIGH
mcp-handler has a tool response leak across concurrent client sessions ('Race Condition')
Risk Scores
CVSS 3.1
7.099999904632568
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| npm | mcp-handler | 0 |
Timeline
- Apr 1, 2026 CVE Published
- Apr 2, 2026 CVE Updated
- May 19, 2026 Security Advisory
References
- https://github.com/modelcontextprotocol/typescript-sdk/security/advisories/GHSA-345p-7cg4-v4c7 url
- https://github.com/advisories/GHSA-w2fm-25vw-vh7f advisory
- https://github.com/vercel/mcp-handler/security/advisories/GHSA-w2fm-25vw-vh7f url
- https://nvd.nist.gov/vuln/detail/CVE-2026-25536 advisory
- https://github.com/advisories/GHSA-345p-7cg4-v4c7 advisory
- https://github.com/vercel/mcp-handler url
- https://github.com/modelcontextprotocol/typescript-sdk package
- https://github.com/modelcontextprotocol/typescript-sdk/issues/204 discussion
- https://github.com/modelcontextprotocol/typescript-sdk/issues/243 discussion