CVE-2026-17623: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in IBM Langflow OSS
IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary commands due to improper validation of the command field in MCP server configurations.
AI Analysis
Technical Summary
CVE-2026-17623 is an OS command injection vulnerability (CWE-78) in IBM Langflow OSS versions 1.0.0 through 1.10.3. The issue arises from improper neutralization of special elements in the command field of MCP server configurations, enabling a remote authenticated attacker to execute arbitrary OS commands. The vulnerability is rated high severity with a CVSS 3.1 score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). No official patch or remediation level has been published by IBM as of the data provided.
Potential Impact
Successful exploitation allows a remote authenticated attacker to execute arbitrary commands on the system, potentially leading to full compromise of confidentiality, integrity, and availability of the affected system. This can result in unauthorized data access, modification, or disruption of service.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to MCP server configurations to trusted users only and monitor for suspicious activity related to command execution. Avoid exposing the affected service to untrusted networks.
CVE-2026-17623: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in IBM Langflow OSS
Description
IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary commands due to improper validation of the command field in MCP server configurations.
CVSS v3.1
Score 8.8high
Affected software
pkg:github/ibm/langflow_osscpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:langflow_oss:1.10.3:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-17623 is an OS command injection vulnerability (CWE-78) in IBM Langflow OSS versions 1.0.0 through 1.10.3. The issue arises from improper neutralization of special elements in the command field of MCP server configurations, enabling a remote authenticated attacker to execute arbitrary OS commands. The vulnerability is rated high severity with a CVSS 3.1 score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). No official patch or remediation level has been published by IBM as of the data provided.
Potential Impact
Successful exploitation allows a remote authenticated attacker to execute arbitrary commands on the system, potentially leading to full compromise of confidentiality, integrity, and availability of the affected system. This can result in unauthorized data access, modification, or disruption of service.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to MCP server configurations to trusted users only and monitor for suspicious activity related to command execution. Avoid exposing the affected service to untrusted networks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-27T20:52:42.230Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a736b5ebf8831d5392da416
Added to database: 08/05/2026, 16:57:02 UTC
Last enriched: 08/05/2026, 17:43:20 UTC
Last updated: 08/05/2026, 19:08:35 UTC
Views: 4
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