Vigie VulnDBEuropean-hosted Vulnerability DB

CVE-2026-6596

langflow-ai langflow API Endpoint endpoints.py create_upload_file unrestricted upload

At a glance

Severity
MEDIUM 6.9
EPSS
EPSS 0.28 % · percentile 21 (2026-10-28)
State
PUBLISHED
Published
Updated
Assigner
VulDB
NVD status
Deferred

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.

Scores

VersionScoreVectorScored by
CVSS 4.0MEDIUM 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PVulDB
CVSS 3.1HIGH 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:RVulDB
CVSS 3.0HIGH 7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:RVulDB
CVSS 2.0HIGH 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:URVulDB
CVSS 4.0MEDIUM 5.5CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XNVD · cna@vuldb.com (Secondary)
CVSS 3.1HIGH 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LNVD · cna@vuldb.com (Secondary)
CVSS 2.0HIGH 7.5AV:N/AC:L/Au:N/C:P/I:P/A:PNVD · cna@vuldb.com (Secondary)

Weaknesses (CWE)

Advisories

European references

Affected products

ProductVersions
langflow-ai · langflowaffected 1.0 ; affected 1.1.0

References

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD