CVE-2026-113663 (GCVE-0-2026-113663)

Vulnerability from cvelistv5 – Published: 2026-11-05 22:53 – Updated: 2026-11-05 22:53
VLAI
Title
AG2: Newline injection in SandboxShellTool bypasses allowed=[...] and readonly=True, enabling arbitrary command execution
Summary
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.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
  • CWE-184 - Incomplete List of Disallowed Inputs
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 8094 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
ag2ai ag2 Affected: >= 0.13.2, < 1.1.1
guessed Create a notification for this product.
ag2ai autogen Affected: >= 0.13.2, <= 0.14.1
guessed Create a notification for this product.
Show details on NVD website
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{
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        }
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      "metrics": [
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          ]
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        {
          "descriptions": [
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              "description": "CWE-184: Incomplete List of Disallowed Inputs",
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        "shortName": "GitHub_M"
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          "url": "https://github.com/ag2ai/ag2/security/advisories/GHSA-2h4w-29cv-2cmv"
        },
        {
          "name": "https://github.com/ag2ai/ag2/commit/3cd86726bb731eb11d6270f0ef9e50e42b5abb39",
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        "advisory": "GHSA-2h4w-29cv-2cmv",
        "discovery": "UNKNOWN"
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      "title": "AG2: Newline injection in SandboxShellTool bypasses allowed=[...] and readonly=True, enabling arbitrary command execution"
    }
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  "cveMetadata": {
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    "dateReserved": "2026-10-20T14:27:46.641Z",
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    "state": "PUBLISHED"
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      "percentile": "0.28461"
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        "cveTags": [],
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            "lang": "en",
            "value": "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."
          }
        ],
        "id": "CVE-2026-113663",
        "lastModified": "2026-11-05T23:16:50.523",
        "metrics": {
          "cvssMetricV31": [
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            "url": "https://github.com/ag2ai/ag2/security/advisories/GHSA-2h4w-29cv-2cmv"
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        "vulnStatus": "Received",
        "weaknesses": [
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            "source": "security-advisories@github.com",
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    }
  }
}



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