Omnigent Guardrail policy bypass: shell-command parser fails open in policies/builtins/_shell.py
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
Omnigent is an open-source AI agent framework and meta-harness for orchestrating coding agents. Prior to 0.3.0, the shared shell-command parser in omnigent/policies/builtins/_shell.py fails to recognize combined interpreter flags, the timeout, nice, setsid, and stdbuf wrappers, command substitutions, and a single background control operator. A gated git push or gh write hidden with these forms produces no parsed operation, causing the github.py write_repos and write_branches allowlist and the working_dir.py workspace confinement policies to abstain and allow the command. An authenticated or prompt-injected agent can therefore push to an unauthorized repository or branch or escape the intended workspace. This issue is fixed in version 0.3.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| omnigent-ai | omnigent | before 0.3.0 | 0.3.0 | Patch available | CNA |
| — | omnigent (PyPI) | before 0.3.0 | 0.3.0 | Patch available | GHSA-7mqg-cx4g-x2rf |
- omnigent Vendoromnigent-ai Affected before 0.3.0 Fixed in 0.3.0 Patch available CNA
- omnigent (PyPI) Vendor— Affected before 0.3.0 Fixed in 0.3.0 Patch available GHSA-7mqg-cx4g-x2rf
Remediation
- Fix · CNA omnigent (omnigent-ai) Fixed in 0.3.0
- Fix · GHSA-7mqg-cx4g-x2rf omnigent (PyPI) Fixed in 0.3.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-62676
- 2026-10-03 Alias added: GHSA-7mqg-cx4g-x2rf
References
Other 5
- https://github.com/omnigent-ai/omnigent/security/advisories/GHSA-7mqg-cx4g-x2rf
- https://github.com/omnigent-ai/omnigent/pull/389
- https://github.com/omnigent-ai/omnigent/commit/1a05b7b139ef504bf2be89bf37918abe104fb95c
- https://github.com/omnigent-ai/omnigent/releases/tag/v0.3.0
- https://github.com/omnigent-ai/omnigent
More omnigent-ai vulnerabilities
- TI-2026-44783 Omnigent: Uploaded Agent Bundle Allows Authenticated Runner RCE via Python Callable Tools CVSS 3.1HIGH 8.8
- TI-2026-44785 Path traversal in omnigent-ai omnigent CVSS 3.1HIGH 8.8
- TI-2026-44782 Omnigent: Shared Agent Bundle Overwrite Leads to Authenticated Runner RCE CVSS 3.1CRITICAL 9.0
- TI-2026-76167 Path traversal in Omnigent lets users read and write host files CVSS 4.0HIGH 7.7
Sources
- CVE-2026-62676 · CVE Program
- CVE-2026-62676 · NVD
- FIRST EPSS
- GHSA-7mqg-cx4g-x2rf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences