CVE-2026-5022

Langflow - Missing Authorization on download_image Endpoint

At a glance

Severity: MEDIUM 6.3
EPSS: EPSS 0.21 % · percentile 11 (2026-10-27)
State: PUBLISHED
Published: 2026-03-27
Updated: 2026-03-27
Assigner: tenable
NVD status: Analyzed

Description

The '/api/v1/files/images/{flow_id}/{file_name}' endpoint does not enforce any authentication or authorization checks, allowing any unauthenticated user to download images belonging to any flow by knowing (or guessing) the flow ID and file name.

Scores

Version	Score	Vector	Scored by
CVSS 4.0	MEDIUM 6.3	CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	tenable
CVSS 4.0	MEDIUM 6.3	CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/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:X	NVD · vulnreport@tenable.com (Secondary)
CVSS 3.1	MEDIUM 5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-862

European references

ENISA EUVD · EUVD-2026-16662
GCVE · GCVE-0-2026-5022

Affected configurations (NVD CPE)

cpe:2.3:a:langflow:langflow:-:*:*:*:*:*:*:*

Affected products

Product	Versions
langflow-ai · langflow	affected 0

References

https://www.tenable.com/security/research/tra-2026-23

Sources

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