CVE-2026-107366

HIGH
MEDIUM Priority: 0.03 BB Relevance: 67/100
Published: 2026-10-20 Modified: 2026-11-03 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

IBM Langflow OSS 1.0.0 through 1.12.4 contains three message endpoints that perform no ownership verification. Any authenticated user can bulk-delete another user's messages, overwrite message content to inject malicious prompts, or hijack an entire conversation session by reassigning its session ID.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
langflow langflow 1.0.0 – 1.12.5

References & Advisories (1)

Bug Bounty Relevance

67 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

8.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

EPSS — Exploitation Probability

0.30%
Raw Score 0.003020
Percentile 23.3%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00302
2026-11-13
0.00302
2026-11-12
0.00302
2026-11-10
0.00302
2026-11-09
0.00302
2026-11-08
0.00302
2026-11-07
0.00302
2026-11-06
0.00302
2026-11-05
0.00302
2026-11-04
0.00302
2026-11-03
0.00302

Intelligence Sources

nvd ref →