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Authenticated RCE in IBM Langflow OSS module import validation
CVE-2026-17624 is a high-severity remote code execution vulnerability in IBM Langflow OSS affecting versions 1.0.0 through 1.10.3. The flaw is caused by improper validation of module imports during component generation, validation, and custom component handling. An authenticated remote attacker with low privileges can abuse the import mechanism to cause unintended code generation or execution, resulting in arbitrary code execution within the Langflow OSS environment.
What it means and what to do now: patch path, interim mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
Successful exploitation allows a remote authenticated attacker to execute arbitrary code. Given the CVSS scope change and high impact ratings for confidentiality, integrity, and availability, exploitation can lead to full compromise of the affected application context, including unauthorized access to sensitive data, modification of application state or workflows, and disruption of service.
If you can’t patch tonight, do this now.
Until a fixed version is deployed, reduce exposure by tightly validating and restricting module import behavior, limiting which modules or component sources can be imported, restricting import permissions to only trusted administrative users where possible, and monitoring the application for suspicious component creation, validation, or custom component activity that could indicate abuse of the import mechanism.
Patch, then assume compromise.
Upgrade IBM Langflow OSS to a version newer than 1.10.3 once a fixed release is available. Apply the vendor-provided fix for improper validation of module imports, particularly in component generation, validation, and custom component handling paths.
No public exploits tracked yet. Mallory keeps watching.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.