CVE-2026-9764

IBM Bob is vulnerable to Remote Code Execution due to improper control of workspace-defined MCP server execution

Published Nov 8, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
IBM Bob 1.0.4 through 2.0.1 could allow a remote attacker to inject arbitrary code on the system, due to the improper control of user input code.

Remediation

Vendor Solution

IBM strongly recommends addressing the vulnerability now by upgrading to IBM Bob Shell V 2.0.2 or the later https://bob.ibm.com/docs/shell . We recommend reviewing the documentation for guidance on installing  IBM Bob https://bob.ibm.com/docs/ide/getting-started/install .


Vendor Workaround

Until an upgrade can be applied, IBM recommends the following precautions: Only use IBM Bob Shell with trusted repositories and trusted code sources. Avoid opening repositories obtained from unknown or untrusted parties. Review repository contents and configuration before use in shared or public environments. Follow organizational security practices for validating and approving source code repositories. Note: These mitigations reduce exposure but do not fully address the vulnerability. IBM recommends upgrading to IBM Bob Shell version 2.0.2 or later as the preferred remediation.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Ibm bob Shell
Vendors & Products Ibm bob Shell
Type Values Removed Values Added
Description IBM Bob 1.0.4 through 2.0.1 could allow a remote attacker to inject arbitrary code on the system, due to the improper control of user input code.
Title IBM Bob is vulnerable to Remote Code Execution due to improper control of workspace-defined MCP server execution
First Time appeared Ibm
Ibm bob
Weaknesses CWE-94
CPEs cpe:2.3:a:ibm:bob:1.0.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:bob:2.0.1:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm bob
References
Metrics cvssV3_1

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Nov 9, 2026, 9:12 PM
Reserved
May 27, 2026, 6:55 PM
Status
Awaiting Analysis
Published
Nov 8, 2026, 7:17 PM
Modified
Nov 9, 2026, 10:18 PM