CVE-2026-62676

Omnigent Guardrail policy bypass: shell-command parser fails open in policies/builtins/_shell.py

Published Aug 21, 2026 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-7mqg-cx4g-x2rf Omnigent Guardrail policy bypass: shell-command parser fails open in policies/builtins/_shell.py
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Omnigent-ai
Omnigent-ai omnigent
Vendors & Products Omnigent-ai
Omnigent-ai omnigent
Type Values Removed Values Added
Description 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.
Title Omnigent Guardrail policy bypass: shell-command parser fails open in policies/builtins/_shell.py
Weaknesses CWE-184
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 26, 2026, 5:32 PM
Reserved
Jul 14, 2026, 8:22 PM
Status
Deferred
Published
Aug 21, 2026, 6:16 PM
Modified
Oct 14, 2026, 9:10 PM