langflow-ai langflow API Endpoint endpoints.py create_upload_file unrestricted upload
Published Apr 20, 2026
6.9
MEDIUMCVSS 4.0
EPSS 0.47%
Description
A security flaw has been discovered in langflow-ai langflow up to 1.1.0. This issue affects the function create_upload_file of the file src/backend/base/Langflow/api/v1/endpoints.py of the component API Endpoint. The manipulation results in unrestricted upload. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Affected products
-
- Version 1.0StatusaffectedConstraints-
- Version 1.1.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Langflow-AI | Langflow | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (9)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-23745 Advisory
- https://gist.github.com/chenhouser2025/c2aabfdee41009cfe45d28a9924742a0 exploit
- https://github.com/advisories/GHSA-vvfc-fp59-m92g Advisory
- https://github.com/langflow-ai/langflow/commit/b5662446bc8c54d928e278d3d26ad95b62425815
- https://github.com/langflow-ai/langflow/commits/v1.9.1
- https://nvd.nist.gov/vuln/detail/CVE-2026-6596
- https://vuldb.com/submit/791919 third-party-advisory
- https://vuldb.com/vuln/358231 vdb-entrytechnical-description
- https://vuldb.com/vuln/358231/cti signaturepermissions-required
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-23745 | Advisory | |
| https://gist.github.com/chenhouser2025/c2aabfdee41009cfe45d28a9924742a0 | exploit | |
| https://github.com/advisories/GHSA-vvfc-fp59-m92g | Advisory | |
| https://github.com/langflow-ai/langflow/commit/b5662446bc8c54d928e278d3d26ad95b62425815 | ||
| https://github.com/langflow-ai/langflow/commits/v1.9.1 | ||
| https://nvd.nist.gov/vuln/detail/CVE-2026-6596 | ||
| https://vuldb.com/submit/791919 | third-party-advisory | |
| https://vuldb.com/vuln/358231 | vdb-entrytechnical-description | |
| https://vuldb.com/vuln/358231/cti | signaturepermissions-required |
Change history (0)
No recorded changes yet.