Hub/AI Security/Advisories/GHSA-hvrp-rf83-w775
Experimental task handlers allow any client to access and cancel other clients' tasks
MCP Python SDK security advisory.
| GHSA | GHSA-hvrp-rf83-w775 |
|---|---|
| Published | Jun 5, 2026 |
| Severity | High 7.6 |
| CVE | CVE-2026-52870 |
| Status | patched |
| Affected | >= 1.23.0, <= 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
Weekly, free
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