CVE-2026-105797

8.8 HIGHpublic exploit available

Published 2026-10-06 · Updated 2026-10-06

AI risk analysis

Summary: The flaw in SimpleChat allows a low-privileged user to execute arbitrary operating-system processes under the application service identity, potentially exposing or modifying secrets and disrupting the service.
Exploitability: Exploitation requires personal plugins to be enabled and governance to permit MCP actions, making it moderately difficult. An authenticated low-privileged user can exploit this flaw.
Blast radius: If exploited, this can lead to severe data exposure, modification, or service disruption.
Detection: No reliable host or network indicator is derivable from the published description.
Prioritized remediation: Upgrade to version 0.261.031 or later.

rceauth-bypassapios-privilegeweb

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. In versions 0.261.003 and 0.261.027, an authorization ordering flaw in POST /api/user/plugins allows an authenticated low-privileged user to omit the top-level MCP type so that _reject_non_admin_mcp_stdio skips inspection before the type is restored from metadata. The stored personal action can then reach McpPluginFactory.create_connector, and MCPStdioPlugin.connect starts the attacker-selected operating-system process under the application service identity when the action tool is invoked. Exploitation requires personal plugins to be enabled and governance to permit MCP actions, and it can expose or modify secrets and data available to the service or disrupt the service. This issue is fixed in version 0.261.031.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-78, CWE-863

Public exploit & PoC references

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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