Dashboard / CVE-2026-8446

CVE-2026-8446

HIGH
MEDIUM Priority: 0.04 BB Relevance: 75/100
Published: 2026-08-05 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact

CVSS Vector Breakdown

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

Description

IBM Langflow OSS 1.0.0 through 1.10.3 contain an authentication bypass vulnerability in the Model Context Protocol (MCP) composer endpoint when mcp_composer_enabled=true (default) and projects are configured with auth_type=oauth .

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
langflow langflow 1.0.0 – 1.11.0

References & Advisories (1)

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:H/I:N/A:N

EPSS — Exploitation Probability

0.49%
Raw Score 0.004890
Percentile 42.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00489
2026-10-28
0.00489

Intelligence Sources

nvd ref →

External Links