SCA: security update for langflow (GHSA-4hmc-cfm3-w43c)

high Tenable Self-Hosted Container Security Plugin ID 473769

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.6.8 until 1.9.1,
Langflow authenticated access to the project identifier in a project-scoped MCP connection but did not
authorize the resource URI supplied to resources/read. read_resource forwarded the attacker-controlled URI
to handle_read_resource, which parsed a flow_id and filename and called storage_service.get_file without
verifying that the flow belonged to the authenticated user or current project. A user with access to any
project-scoped MCP endpoint could therefore request another user's flow-backed file, while global
handle_list_resources and handle_list_tools behavior could disclose flow and file identifiers that made
targeting easier. The vulnerability disclosed uploaded documents, structured data, prompts, and other
private flow artifacts across tenants but did not modify victim files or stored flows. This issue is fixed
in version 1.9.1. (CVE-2026-105699)

Solution

Update the langflow library and its related packages to version 1.9.1 or later.

See Also

https://github.com/advisories/GHSA-4hmc-cfm3-w43c

Plugin Details

Severity: High

ID: 473769

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/8/2026

Updated: 10/8/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.68

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Low

Base Score: 3.5

Temporal Score: 2.6

Vector: CVSS2#AV:N/AC:M/Au:S/C:P/I:N/A:N

CVSS Score Source: CVE-2026-105699

CVSS v3

Risk Factor: Medium

Base Score: 5.7

Temporal Score: 5

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7.1

Threat Score: 4.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/7/2026

Vulnerability Publication Date: 10/5/2026

Reference Information

CVE: CVE-2026-105699

cwe: CWE-639