Detections
Analytics

SCA: security update for markdown-it (GHSA-6v5v-wf23-fmfq)

medium Tenable Cloud Security Plugin ID 443233

Description

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

 - markdown-it is a Markdown parser. Versions 14.1.1 and below contain a denial-of-service vulnerability when
 typographer: true is enabled, due to quadratic (O(n^2)) processing in the smartquotes rule. The issue
 stems from repeatedly modifying strings with replaceAt(), which performs O(n) slicing and concatenation
 per quote character. This can cause excessive CPU consumption when parsing quote-heavy, user-supplied
 markdown and may let attackers degrade or disrupt service availability. Although typographer is disabled
 by default, many production apps enable it for smart typography, making the issue relevant. This issue has
 been fixed in version 14.2.0. (CVE-2026-48988)

Solution

Update the markdown-it library and its related packages to version 14.2.0 or later.

See Also

https://github.com/advisories/GHSA-6v5v-wf23-fmfq

Plugin Details

Severity: Medium

ID: 443233

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 6/16/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2026-48988

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/15/2026

Vulnerability Publication Date: 6/15/2026

Reference Information

CVE: CVE-2026-48988