{"id":"CVE-2026-62674","aliases":["GHSA-jrrm-9hc7-2v3h"],"url":"https://o3.security/vulnerability/CVE-2026-62674","summary":"Omnigent: Shared Agent Bundle Overwrite Leads to Authenticated Runner RCE","details":"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.","published":"2026-08-21T17:47:37.976Z","modified":"2026-08-27T11:31:03.766245388Z","cvss":{"score":9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H"},"epss":{"score":0.00343,"percentile":0.26844,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"omnigent","fixedVersion":"0.3.0"}],"fix":{"url":"https://github.com/omnigent-ai/omnigent/commit/25a22dc9e6da4648d23749f0a589e47e6aed991b","label":"omnigent-ai/omnigent@25a22dc"},"references":[{"type":"WEB","url":"https://github.com/omnigent-ai/omnigent/releases/tag/v0.3.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62674.json"},{"type":"ADVISORY","url":"https://github.com/omnigent-ai/omnigent/security/advisories/GHSA-jrrm-9hc7-2v3h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62674"},{"type":"FIX","url":"https://github.com/omnigent-ai/omnigent/commit/25a22dc9e6da4648d23749f0a589e47e6aed991b"},{"type":"FIX","url":"https://github.com/omnigent-ai/omnigent/pull/1418"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T11:31:03.766245388Z"}}