CVE-2026-105797 SimpleChat - Command Injection

SimpleChat 0.261.003 and 0.261.027 contain a command injection caused by an authorization ordering flaw in POST /api/user/plugins, letting authenticated low-privileged users execute OS processes under the service identity, exploit requires personal plugins enabled and governance permitting MCP actions.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.56% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Command Injection
Impact
Remote Code Execution, Information Disclosure, Data Tampering, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
6 October 2026
Updated
15 October 2026
Weakness
CWE-78

Vendor fix

Update to version 0.261.031 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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