CVE-2026-62674: Omnigent: Shared Agent Bundle Overwrite Leads to Authenticated Runner RCE
An authenticated user with edit access to their own session can overwrite a shared/template agent by uploading a full agent bundle through PUT /sessions/{session_id}/agent.
Shared/template agents are shown as not MCP-editable, but this upload path still accepts a replacement bundle. By adding a stdio MCP server to the shared agent, the attacker can cause future runner sessions using that shared agent to start an attacker-controlled command.
References
- github.com/advisories/GHSA-jrrm-9hc7-2v3h
- github.com/omnigent-ai/omnigent/commit/25a22dc9e6da4648d23749f0a589e47e6aed991b
- github.com/omnigent-ai/omnigent/pull/1418
- github.com/omnigent-ai/omnigent/releases/tag/v0.3.0
- github.com/omnigent-ai/omnigent/security/advisories/GHSA-jrrm-9hc7-2v3h
- nvd.nist.gov/vuln/detail/CVE-2026-62674
Code Behaviors & Features
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