P4Verified

CVE-2026-55255: langflow before 1.9.1 (exclusive), < 1.9.1

CVE-2026-55255. CVSS 3.1 base score 8.4 (HIGH, Vendor/CNA). EPSS 0.00887 (percentile 0.57957), scored 06-Oct-2026.

Affected technology

langflow · before 1.9.1 (exclusive)
langflow

langflow · < 1.9.1
langflow-ai

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

An authenticated attacker can execute any flow belonging to another user by specifying the victim's flow ID in the request. Vendor/CNA’s CVSS 3.1 assessment (base score 8.4/10) rates confidentiality and integrity impact as high; availability impact as low.

Published 12-Oct-2026 00:35 UTC

CWE: CWE-639
CCR priority: 33.8 /100 (P4)
CVSS 3.1: 8.4 /10 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L · Vendor/CNA
EPSS: 0.00887 · percentile 0.58142 · 2026-10-11
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-11 23:42:05.235979+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-07 23:02:50.240617+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-55255.html