NIXPKGS-2026-2298
GitHub issue
published 1 month, 2 weeks ago
MCP Python SDK: Experimental task handlers allow any client to access and cancel other clients' tasks
Permalink
CVE-2026-52870
7.6 HIGH
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): High (H)
- Integrity (I): Low (L)
- Availability (A): Low (L)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): Low (L)
- Modified Availability (MA): Low (L)
by @erictapen Activity log
- Created suggestion
-
@erictapen
ignored
18 packages
- python314Packages.aliyun-python-sdk-config
- python313Packages.aliyun-python-sdk-config
- python314Packages.aliyun-python-sdk-alimt
- python313Packages.aliyun-python-sdk-alimt
- python314Packages.aliyun-python-sdk-dbfs
- python314Packages.aliyun-python-sdk-core
- python313Packages.aliyun-python-sdk-dbfs
- python313Packages.aliyun-python-sdk-core
- python314Packages.aliyun-python-sdk-sts
- python314Packages.aliyun-python-sdk-kms
- python314Packages.aliyun-python-sdk-iot
- python314Packages.aliyun-python-sdk-cdn
- python313Packages.aliyun-python-sdk-sts
- python313Packages.aliyun-python-sdk-kms
- python313Packages.aliyun-python-sdk-iot
- python313Packages.aliyun-python-sdk-cdn
- python314Packages.bce-python-sdk
- python313Packages.bce-python-sdk
- @erictapen accepted
- @erictapen published on GitHub
MCP Python SDK: Experimental task handlers allow any client to access and cancel other clients' tasks
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https://github.com/modelcontextprotocol/python-sdk/pull/2720 x_refsource_MISC
python-sdk
- ==>= 1.23.0, < 1.27.2