| Component | Langflow |
| Severity | medium (CVSS 6.5) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| Published (NVD) | 2026-08-05 |
| Last modified | 2026-08-06 |
| Affected versions | langflow >= 1.0.0, < 1.11.0 |
| Fixed in | 1.11.0 |
| Weakness | CWE-22 |
| CISA KEV | not listed |
NVD description
IBM Langflow OSS 1.0.0 through 1.10.3 does not properly validate the username field, allowing attackers to inject path traversal sequences and bypass containment checks. This enables multiple severe impacts, including arbitrary directory deletion, cross-tenant data destruction, and JWT signing key deletion leading to session invalidation.
What to do
- Upgrade Langflow to
1.11.0or 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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