| Component | Langflow |
| Severity | medium (CVSS 5.3) |
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
| Published (NVD) | 2026-06-22 |
| Last modified | 2026-06-26 |
| Affected versions | langflow < 1.9.3 |
| Fixed in | 1.9.3 |
| Weakness | CWE-74CWE-94 |
| CISA KEV | not listed |
NVD description
A vulnerability was identified in langflow-ai langflow up to 1.9.3. This affects an unknown function of the component Bundle URL Loader. The manipulation leads to code injection. The attack needs to be performed locally. The vendor was contacted early about this disclosure but did not respond in any way.
What to do
- Upgrade Langflow to
1.9.3or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-12822
- https://github.com/dxz0069/softwareoverflow/blob/main/langflow_bundle_url_custom_component_startup_rce_vulndb.md
- https://vuldb.com/cve/CVE-2026-12822
- https://vuldb.com/submit/837582
- https://vuldb.com/vuln/372612
- https://vuldb.com/vuln/372612/cti
Read more
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