CVE-2026-52870
🗓️ 15 Jul 2026 20:07:53Reported by GitHub_MType 
cve🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 19 Views🌐 WEB
| Reporter | Title | Published | Views | Family All 31 |
|---|---|---|---|---|
 | CVE-2026-52870 | 15 Jul 202620:07 | – | attackerkb |
 | CVE-2026-52870 vulnerabilities | 21 Jul 202614:17 | – | cgr |
 | CVE-2026-52870 | 15 Jul 202621:00 | – | circl |
 | CVE-2026-52870 MCP Python SDK: Experimental task handlers allow any client to access and cancel other clients' tasks | 15 Jul 202620:07 | – | cvelist |
 | EUVD-2026-44797 | 16 Jul 202619:56 | – | euvd |
 | MCP Python SDK: Experimental task handlers allow any client to access and cancel other clients' tasks | 16 Jul 202619:56 | – | github |
 | CVE-2026-52870 | 15 Jul 202620:17 | – | nvd |
 | CGA-97G3-PH7V-HFM3 | 21 Jul 202616:39 | – | osv |
| CVE-2026-52870 MCP Python SDK: Experimental task handlers allow any client to access and cancel other clients' tasks | 15 Jul 202620:07 | – | osv |
| ECHO-686F-4B2A-3DD3 | 18 Jul 202600:00 | – | osv |
10
Node
[
{
"vendor": "modelcontextprotocol",
"product": "python-sdk",
"versions": [
{
"version": ">= 1.23.0, < 1.27.2",
"status": "affected"
}
]
}
]| Parameter | Position | Path | Description | CWE |
|---|---|---|---|---|
| task_id | query param | /tasks/get | Reading results of another client's task because session is not recorded when accessing task via tasks/get. | CWE-862 |
| task_id | query param | /tasks/result | Accessing results of another client's task due to missing session tracking when querying task results. | CWE-862 |
| task_id | query param | /tasks/cancel | Cancelling another client's task because session context is not recorded for task operations. | CWE-862 |
Data
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17 Jul 2026 18:07Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.17.6
EPSS0.00236
SSVC