AG2 is an open-source AgentOS. From 0.13.2 until ag2 1.1.1, and from autogen 0.13.2 to 0.14.1, SandboxShellTool configurations using allowed=[...] or readonly=True rely on ShellAdapter._filter and contains_shell_operator in ag2/tools/sandbox/filter.py and ag2/tools/sandbox/adapter/shell.py to validate a command prefix and reject selected shell syntax. The filter omits newline and carriage-return separators, while the accepted raw string is passed to sh -c, allowing an attacker-influenced agent command to execute an additional arbitrary statement. With the default LocalEnvironment backend, the injected statement runs as a host subprocess with the privileges of the agent process and can affect confidentiality, integrity, and availability. This issue is fixed in ag2 version 1.1.1.

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Fri, 06 Nov 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Ag2ai
Ag2ai ag2
Ag2ai autogen
Vendors & Products Ag2ai
Ag2ai ag2
Ag2ai autogen

Thu, 05 Nov 2026 23:00:00 +0000

Type Values Removed Values Added
Description AG2 is an open-source AgentOS. From 0.13.2 until ag2 1.1.1, and from autogen 0.13.2 to 0.14.1, SandboxShellTool configurations using allowed=[...] or readonly=True rely on ShellAdapter._filter and contains_shell_operator in ag2/tools/sandbox/filter.py and ag2/tools/sandbox/adapter/shell.py to validate a command prefix and reject selected shell syntax. The filter omits newline and carriage-return separators, while the accepted raw string is passed to sh -c, allowing an attacker-influenced agent command to execute an additional arbitrary statement. With the default LocalEnvironment backend, the injected statement runs as a host subprocess with the privileges of the agent process and can affect confidentiality, integrity, and availability. This issue is fixed in ag2 version 1.1.1.
Title AG2: Newline injection in SandboxShellTool bypasses allowed=[...] and readonly=True, enabling arbitrary command execution
Weaknesses CWE-184
CWE-78
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-11-05T22:53:40.444Z

Reserved: 2026-10-20T14:27:46.641Z

Link: CVE-2026-113663

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-05T23:16:50.523

Modified: 2026-11-05T23:16:50.523

Link: CVE-2026-113663

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T16:34:42Z

Weaknesses