| Component | Langflow |
| Severity | critical (CVSS 9.6) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N |
| Published (NVD) | 2026-06-30 |
| Last modified | 2026-08-11 |
| Affected versions | langflow >= 1.0.0, <= 1.10.0 |
| Fixed in | see the vendor advisory |
| Weakness | CWE-639 |
| CISA KEV | not listed |
NVD description
IBM Langflow OSS 1.0.0 through 1.10.0 voice mode contains improper shared-state handling that allows reuse of API clients across tenant boundaries. An authenticated attacker can manipulate cache state to cause requests from other users to be processed using incorrect upstream API credentials, leading to cross-tenant billing and accountability misattribution.
What to do
- NVD lists no fixed version yet: follow the vendor advisory below and keep Langflow off the public internet until a fix ships.
- 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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