Detections
Analytics

SCA: security update for mesop (GHSA-3jr7-6hqp-x679)

high Tenable Self-Hosted Container Security Plugin ID 440464

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. From version 1.2.3 to
 before version 1.2.5, an uncontrolled resource consumption vulnerability exists in the WebSocket
 implementation of the Mesop framework. An unauthenticated attacker can send a rapid succession of
 WebSocket messages, forcing the server to spawn an unbounded number of operating system threads. This
 leads to thread exhaustion and Out of Memory (OOM) errors, causing a complete Denial of Service (DoS) for
 any application built on the framework. This issue has been patched in version 1.2.5. (CVE-2026-34824)

Solution

Update the mesop library and its related packages to version 1.2.5 or later.

See Also

https://github.com/advisories/GHSA-3jr7-6hqp-x679

Plugin Details

Severity: High

ID: 440464

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 4/16/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.35

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-34824

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/3/2026

Vulnerability Publication Date: 4/3/2026

Reference Information

CVE: CVE-2026-34824