Dashboard / CVE-2026-7664

CVE-2026-7664

CRITICAL
INFO Priority: 0.05 BB Relevance: 80/100
Published: 2026-06-22 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

IBM Langflow OSS 1.0.0 through 1.8.4 could allow unauthenticated attackers to access protected MCP project resources and execute MCP operations due to improper authorization enforcement in the Streamable MCP transport endpoint.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
langflow langflow 1.0.0 – 1.8.4

References & Advisories (1)

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.50%
Raw Score 0.004980
Percentile 42.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00498
2026-10-28
0.00498

Intelligence Sources

nvd ref →

External Links