- Description
- The MCP Python SDK, called `mcp` on PyPI, is a Python implementation of the Model Context Protocol (MCP). Prior to version 1.10.0, if a client deliberately triggers an exception after establishing a streamable HTTP session, this can lead to an uncaught ClosedResourceError on the server side, causing the server to crash and requiring a restart to restore service. Impact may vary depending on the deployment conditions, and presence of infrastructure-level resilience measures. Version 1.10.0 contains a patch for the issue.
- Source
- security-advisories@github.com
- NVD status
- Awaiting Analysis
CVSS 4.0
- Type
- Secondary
- Base score
- 8.7
- Impact score
- -
- Exploitability score
- -
- Vector string
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity
- HIGH
- security-advisories@github.com
- CWE-248
- Hype score
- Not currently trending
CVE-2025-53365 MCP Python SDK Server Crash via Uncaught ClosedResourceError Before 1.10.0 https://t.co/fyIlQxmDMR
@VulmonFeeds
5 Jul 2025
71 Impressions
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[CVE-2025-53365: HIGH] Python SDK `mcp` (PyPI) for Model Context Protocol had a vulnerability pre-version 1.10.0. Deliberate exception triggering caused server crashes, fixed in 1.10.0.#cve,CVE-2025-53365,#cybersecurity https://t.co/UpsErCrFXm https://t.co/9PqdgnBpdU
@CveFindCom
4 Jul 2025
56 Impressions
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CVE-2025-53365 The MCP Python SDK, called `mcp` on PyPI, is a Python implementation of the Model Context Protocol (MCP). Prior to version 1.10.0, if a client deliberately triggers a… https://t.co/gNX4VIICr6
@CVEnew
4 Jul 2025
777 Impressions
0 Retweets
2 Likes
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