Remote Code Execution Vulnerability in IBM Langflow OSS
CVE-2026-12944

9.6CRITICAL

Key Information:

Vendor

IBM

Vendor
CVE Published:
14 September 2026

What is CVE-2026-12944?

IBM Langflow OSS versions 1.0.0 to 1.10.0 are susceptible to a vulnerability allowing attackers to execute arbitrary Python code with root privileges on the Langflow server. This can be achieved through the submission of components containing socket or urllib imports. The consequences of this vulnerability include unauthorized access to AWS credentials via IMDSv1 SSRF and the potential for arbitrary file exfiltration from the container filesystem, facilitating lateral movement to internal services like PostgreSQL and Redis within the Docker network. Additionally, a misleading security signal is returned by the scanner, indicating a false sense of security.

Affected Version(s)

Langflow OSS 1.0.0 <= 1.10.0

References

CVSS V3.1

Score:
9.6
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

CVE-2026-12944 was reported to IBM by KIM MINJUN (GitHub: 31n6).
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