Detections
Analytics

SCA: security update for langflow (GHSA-vwmf-pq79-vjvx)

critical Tenable Self-Hosted Container Security Plugin ID 439185

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. In versions prior to 1.9.0,
 the POST /api/v1/build_public_tmp/{flow_id}/flow endpoint allows building public flows without requiring
 authentication. When the optional data parameter is supplied, the endpoint uses attacker-controlled flow
 data (containing arbitrary Python code in node definitions) instead of the stored flow data from the
 database. This code is passed to exec() with zero sandboxing, resulting in unauthenticated remote code
 execution. This is distinct from CVE-2025-3248, which fixed /api/v1/validate/code by adding
 authentication. The build_public_tmp endpoint is designed to be unauthenticated (for public flows) but
 incorrectly accepts attacker-supplied flow data containing arbitrary executable code. This issue has been
 fixed in version 1.9.0. (CVE-2026-33017)

Solution

Update the langflow library and its related packages to version 1.8.2 or later.

See Also

https://github.com/advisories/GHSA-vwmf-pq79-vjvx

Plugin Details

Severity: Critical

ID: 439185

Version: Revision 1.15

Type: Local

Family: SCA Checks

Published: 3/25/2026

Updated: 7/7/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Critical

Score: 9.4

Percentile: 99.81

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-33017

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 9.3

Threat Vector: CVSS:4.0/E:A

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/17/2026

Vulnerability Publication Date: 3/17/2026

Exploitable With

Core Impact

Reference Information

CVE: CVE-2026-33017