Detections
Analytics

Echo: markdown-it: security update to 14.1.1

medium Tenable Self-Hosted Container Security Plugin ID 459552

Description

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

 - Versions of the package markdown-it from 13.0.0 and before 14.1.1 are vulnerable to Regular Expression
 Denial of Service (ReDoS) due to the use of the regex /\*+$/ in the linkify function. An attacker can
 supply a long sequence of * characters followed by a non-matching character, which triggers excessive
 backtracking and may lead to a denial-of-service condition. (CVE-2026-2327)

Solution

Update the markdown-it library and its related packages to version 14.1.1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-2327

Plugin Details

Severity: Medium

ID: 459552

Version: Revision 1.3

Type: Local

Published: 10/2/2026

Updated: 10/9/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-2327

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/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 Ease: No known exploits are available

Patch Publication Date: 9/28/2026

Vulnerability Publication Date: 2/12/2026

Reference Information

CVE: CVE-2026-2327