CVE-2026-62674: Omnigent-Ai Omnigent

Critical severity, CVSS 9.0. EPSS: 0.5% chance of exploitation in the next 30 days.

Omnigent is an open-source AI agent framework and meta-harness for orchestrating coding agents. Prior to 0.3.0, PUT /sessions/{session_id}/agent checks LEVEL_EDIT permission for a session but does not reject a bound shared or template agent whose agent.session_id is None. An authenticated user with edit access to a session can replace that shared agent bundle through omnigent/server/routes/sessions.py, add a stdio MCP server, and cause later sessions that use the shared agent to launch an attacker-controlled command through omnigent/tools/mcp.py. The command executes with the Omnigent runner process permissions and can expose files, credentials, workspace data, internal services, and runner availability. This issue is fixed in version 0.3.0.

Affected products

• Omnigent-Ai Omnigent: before 0.3.0 (fixed in 0.3.0)

Published 2026-08-21. Last modified 2026-09-18.