Detections
Analytics
SCA: security update for Markdown (GHSA-5wmx-573v-2qwq)
medium Tenable Cloud Security Plugin ID 438442
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- Python-Markdown version 3.8 contain a vulnerability where malformed HTML-like sequences can cause
html.parser.HTMLParser to raise an unhandled AssertionError during Markdown parsing. Because Python-
Markdown does not catch this exception, any application that processes attacker-controlled Markdown may
crash. This enables remote, unauthenticated Denial of Service in web applications, documentation systems,
CI/CD pipelines, and any service that renders untrusted Markdown. The issue was acknowledged by the vendor
and fixed in version 3.8.1. This issue causes a remote Denial of Service in any application parsing
untrusted Markdown, and can lead to Information Disclosure through uncaught exceptions. (CVE-2025-69534)
Solution
Update the Markdown library and its related packages to version 3.8.1 or later.See Also
Plugin Details
Severity: Medium
ID: 438442
Version: Revision 1.8
Type: Local
Family: SCA Checks
Published: 3/6/2026
Updated: 7/8/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Low
Score: 3
Percentile: 23.75
Vendor
Vendor Severity: Medium
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-2025-69534
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
CVSS v4
Risk Factor: Medium
Base Score: 6.9
Threat Score: 2.7
Threat Vector: CVSS:4.0/E:P
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Vulnerability Information
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 3/5/2026
Vulnerability Publication Date: 3/5/2026
Reference Information
CVE: CVE-2025-69534