Hub/AI Security/Advisories/GHSA-jpw9-pfvf-9f58
HTTP transports serve session requests without verifying the authenticated principal
MCP Python SDK security advisory.
| GHSA | GHSA-jpw9-pfvf-9f58 |
|---|---|
| Published | Jun 5, 2026 |
| Severity | High 7.1 |
| CVE | CVE-2026-52869 |
| Status | patched |
| Affected | <=1.27.1 |
| Fixed in | 1.27.2 |
| Component | MCP Python SDK |
Sources
Checked 2026-11-04. We copy severity and fix versions from the source and never estimate them.
Affected tools
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