| Component | Langflow |
| Severity | high (CVSS 8.8) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Published (NVD) | 2026-09-10 |
| Last modified | 2026-09-16 |
| Affected versions | langflow >= 1.0.0, < 1.11.6 |
| Fixed in | 1.11.6 |
| Weakness | CWE-693 |
| CISA KEV | not listed |
NVD description
IBM Langflow OSS 1.0.0 through 1.11.5 An attacker who could submit custom component source code could bypass the static security scanner by crafting an annotated class-body assignment that resolved to a dangerous callable through alias tracking; the resolved value was never checked against the dangerous callable blocklist due to the logic error. If the crafted component reached the runtime execution path, the attacker could cause arbitrary operating system commands to execute on the server in-process, with the privileges of the running service.
What to do
- Upgrade Langflow to
1.11.6or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
Read more
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