HIGHPyPI →
MCP Python SDK: Experimental task handlers allow any client to access and cancel other clients' tasks
MCP Python SDK: Experimental task handlers allow any client to access and cancel other clients' tasks
Affected packages
- mcp— 1.23.0 → 1.27.2
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/modelcontextprotocol/python-sdk/security/advisories/GHSA-hvrp-rf83-w775
- https://nvd.nist.gov/vuln/detail/CVE-2026-52870
- https://github.com/modelcontextprotocol/python-sdk/pull/2720
- https://github.com/modelcontextprotocol/python-sdk/commit/62137874ff26dd74d2fea80ff528a7fd9ca7a5e7
- https://github.com/modelcontextprotocol/python-sdk
- https://github.com/modelcontextprotocol/python-sdk/releases/tag/v1.27.2
Structured record: https://osv.dev/vulnerability/GHSA-hvrp-rf83-w775
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
Some links are affiliate links — HackTribune may earn a commission at no extra cost to you.
Get incidents like this as alerts for your stack.
Join the beta