CVE-2026-62676
Omnigent Guardrail policy bypass: shell-command parser fails open in policies/builtins/_shell.py
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.
INFO
Published Date :
Aug. 21, 2026, 6:16 p.m.
Last Modified :
Oct. 14, 2026, 9:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
- Update Omnigent to version 0.3.0 or later.
- Review and apply vendor-provided security patches.
- Verify policy enforcement after update.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-62676.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-62676 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-62676
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-62676 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-62676 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Oct. 14, 2026
Action Type Old Value New Value Added Translation Title: omnigent de omnigent-ai, Description: Omnigent es un framework de agente de IA de código abierto y meta-arnés para orquestar agentes de codificación. Antes de la versión 0.3.0, el analizador de comandos de shell compartido en omnigent/policies/builtins/_shell.py falla al reconocer indicadores de intérprete combinados, los envoltorios timeout, nice, setsid y stdbuf, sustituciones de comandos y un único operador de control en segundo plano. Un git push o gh write restringido oculto con estas formas no produce ninguna operación analizada, lo que hace que la lista de permitidos write_repos y write_branches de github.py y las políticas de confinamiento del espacio de trabajo de working_dir.py se abstengan y permitan el comando. Un agente autenticado o inyectado por prompt puede, por lo tanto, hacer push a un repositorio o rama no autorizados o escapar del espacio de trabajo previsto. Este problema se ha corregido en la versión 0.3.0. -
CVE Modified by [email protected]
Aug. 26, 2026
Action Type Old Value New Value Added Reference https://github.com/omnigent-ai/omnigent/commit/1a05b7b139ef504bf2be89bf37918abe104fb95c Added Reference https://github.com/omnigent-ai/omnigent/pull/389 Added Reference https://github.com/omnigent-ai/omnigent/releases/tag/v0.3.0 Added Reference https://github.com/omnigent-ai/omnigent/security/advisories/GHSA-7mqg-cx4g-x2rf Removed Reference https://github.com/omnigent-ai/omnigent/commit/1a05b7b139ef504bf2be89bf37918abe104fb95c Removed Reference https://github.com/omnigent-ai/omnigent/pull/389 Removed Reference https://github.com/omnigent-ai/omnigent/releases/tag/v0.3.0 Removed Reference https://github.com/omnigent-ai/omnigent/security/advisories/GHSA-7mqg-cx4g-x2rf -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 26, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-62676', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-26T17:31:50.102854Z'} -
New CVE Received by [email protected]
Aug. 21, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'omnigent-ai', 'product': 'omnigent', 'versions': [{'status': 'affected', 'version': '< 0.3.0'}]}] 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N Added CWE CWE-184 Added Reference https://github.com/omnigent-ai/omnigent/commit/1a05b7b139ef504bf2be89bf37918abe104fb95c Added Reference https://github.com/omnigent-ai/omnigent/pull/389 Added Reference https://github.com/omnigent-ai/omnigent/releases/tag/v0.3.0 Added Reference https://github.com/omnigent-ai/omnigent/security/advisories/GHSA-7mqg-cx4g-x2rf