CVE-2026-58197 ToolHive - Broken Access Control

ToolHive CLI < 0.30.1 and ToolHive Studio < 0.38.0 contain a broken access control vulnerability caused by lack of network isolation in MCP server containers, letting malicious MCP servers access host-local services and ToolHive components without authentication, exploit requires running a compromised MCP server container.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.37% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Information Disclosure, Data Tampering, Denial Of Service
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Published
18 September 2026
Updated
15 October 2026
Weakness
CWE-284

Vendor fix

Update to ToolHive CLI 0.30.1 and ToolHive Studio 0.38.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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