Detections
Analytics

SCA: security update for mesop (GHSA-gjgx-rvqr-6w6v)

critical Tenable Cloud Security Plugin ID 438995

Description

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

 - Mesop is a Python-based UI framework that allows users to build web applications. In versions 1.2.2 and
 below, an explicit web endpoint inside the ai/ testing module infrastructure directly ingests untrusted
 Python code strings unconditionally without authentication measures, yielding standard Unrestricted Remote
 Code Execution. Any individual capable of routing HTTP logic to this server block will gain explicit host-
 machine command rights. The AI codebase package includes a lightweight debugging Flask server inside
 ai/sandbox/wsgi_app.py. The /exec-py route accepts base_64 encoded raw string payloads inside the code
 parameter natively evaluated by a basic POST web request. It saves it rapidly to the operating system
 logic path and injects it recursively using execute_module(module_path...). This issue has been fixed in
 version 1.2.3. (CVE-2026-33057)

Solution

Update the mesop library and its related packages to version 1.2.3 or later.

See Also

https://github.com/advisories/GHSA-gjgx-rvqr-6w6v

Plugin Details

Severity: Critical

ID: 438995

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 3/19/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.88

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-33057

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/18/2026

Vulnerability Publication Date: 3/18/2026

Reference Information

CVE: CVE-2026-33057

cwe: CWE-94