High severity7.3NVD Advisory· Published Apr 20, 2026· Updated Apr 29, 2026
CVE-2026-6596
CVE-2026-6596
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
langflow-basePyPI | < 0.9.1 | 0.9.1 |
Affected products
1Patches
Vulnerability mechanics
References
8- github.com/advisories/GHSA-vvfc-fp59-m92gghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-6596ghsaADVISORY
- gist.github.com/chenhouser2025/c2aabfdee41009cfe45d28a9924742a0nvdWEB
- github.com/langflow-ai/langflow/commit/b5662446bc8c54d928e278d3d26ad95b62425815ghsaWEB
- github.com/langflow-ai/langflow/commits/v1.9.1ghsaWEB
- vuldb.com/submit/791919nvdWEB
- vuldb.com/vuln/358231nvdWEB
- vuldb.com/vuln/358231/ctinvdWEB
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