Dashboard / CVE-2026-55446

CVE-2026-55446

HIGH
MEDIUM Priority: 0.04 BB Relevance: 75/100
Published: 2026-06-23 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

Description

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.0.19, an attacker can send a /api/v1/files/upload/ request without any authentication token/cookies and abuse a very long multipart form boundary to make the langflow app unusable for all users for an indefinite amount of time. This vulnerability is fixed in 1.0.19.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
langflow langflow < 1.0.19

References & Advisories (2)

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.58%
Raw Score 0.005810
Percentile 47.7%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00581
2026-10-28
0.00581

Intelligence Sources

nvd ref →

External Links