CVE-2026-18894
MediumCVSS 6.5Summary
IBM Langflow OSS versions 1.0.0 through 1.12.4 allow a remote attacker to trigger pre-existing stored Python component code in a public workflow, executing it under the flow owner's runtime context within the server process. This bypasses the intended trust boundary where public execution paths are restricted to server-trusted component code.
Risk Assessment
An attacker may execute code in the context of the workflow owner on the server, potentially leading to unauthorized actions and violation of the application's trust boundaries.
Recommendation
Update IBM Langflow OSS to a version newer than 1.12.4 and restrict the ability to publish public workflows containing component code.
Other vulnerabilities in IBM Langflow OSS
See all- CVE-2026-90991Medium
IBM Langflow OSS versions 1.0.0 through 1.12.4 contain a vulnerability due to allocation of resources without limits or throttling. A remote authenticated attacker could exploit this to cause a denial of service.
- CVE-2026-77819Medium
IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote authenticated attacker to overwrite arbitrary files due to improper limitation of a pathname to a restricted directory.
- CVE-2026-77817Medium
IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote authenticated attacker to obtain sensitive information due to improper sanitization of secrets during flow and project exports.
- CVE-2026-110309High
IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote authenticated attacker to execute arbitrary commands due to improper control of code generation.
- CVE-2026-110245High
IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote attacker to obtain sensitive information due to improper authentication.
- CVE-2026-110244High
IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote authenticated attacker to obtain sensitive information due to improper limitation of a pathname to a restricted directory.
- CVE-2026-110200Medium
IBM Langflow OSS versions 1.0.0 through 1.12.4 could allow a remote authenticated attacker to obtain sensitive information due to cleartext storage of sensitive information. The flaw involves improper protection of such data.
- CVE-2026-110196High
IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote attacker with a low-privileged authenticated account to bypass the administrator-only restriction and execute arbitrary code on the server by configuring a built-in code-execution component with attacker-supplied inputs.
- CVE-2026-110193High
IBM Langflow OSS 1.0.0 through 1.12.8 could allow a remote attacker with a low-privileged authenticated account to cause the Agentic Assistant to generate or submit component code using these unblocked patterns, resulting in arbitrary operating system command execution on the server.
- CVE-2026-110192Medium
IBM Langflow OSS versions 1.0.0 through 1.12.8 could allow a remote authenticated attacker to obtain sensitive information due to insufficiently protected credentials. The flaw involves weak protection of authentication data.
Original NVD description (English source)
IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote attacker to trigger pre-existing stored Python component code in a public workflow, executing it under the flow owner's runtime context within the server process. This bypasses the intended trust boundary where public execution paths are restricted to server-trusted component code.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS