markdown-it is a Markdown parser. Prior to 14.3.2 and 15.0.2, when typographer: true is enabled, specially crafted Markdown can cause quadratic processing time in the smartquotes rule, potentially leading to denial of service in applications processing untrusted input. Many opening double quotes followed by unmatched closing single quotes cause repeated scans of the entire opener stack. The same issue occurs with the quote types reversed. The default configuration (typographer: false) is not affected, but this option is enabled with high probability. This issue is fixed in versions 14.3.2 and 15.0.2.

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

  - markdown-it is a Markdown parser. Prior to 14.3.2 and 15.0.2, when typographer: true is enabled, specially
    crafted Markdown can cause quadratic processing time in the smartquotes rule, potentially leading to
    denial of service in applications processing untrusted input. Many opening double quotes followed by
    unmatched closing single quotes cause repeated scans of the entire opener stack. The same issue occurs
    with the quote types reversed. The default configuration (typographer: false) is not affected, but this
    option is enabled with high probability. This issue is fixed in versions 14.3.2 and 15.0.2.
    (CVE-2026-111759)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - markdown-it is a Markdown parser. Prior to 14.3.2 and 15.0.2, when typographer: true is enabled, specially     crafted Markdown can cause quadratic processing time in the smartquotes rule, potentially leading to     denial of service in applications processing untrusted input. Many opening double quotes followed by     unmatched closing single quotes cause repeated scans of the entire opener stack. The same issue occurs     with the quote types reversed. The default configuration (typographer: false) is not affected, but this     option is enabled with high probability. This issue is fixed in versions 14.3.2 and 15.0.2.
    (CVE-2026-111759)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
476353	SCA: security update for markdown-it (GHSA-r7fv-28h4-cvq7)	Tenable Cloud Security	SCA Checks	Local	high
476353	SCA: security update for markdown-it (GHSA-r7fv-28h4-cvq7)	Tenable Self-Hosted Container Security	SCA Checks	Local	high
367517	Linux Distros Unpatched Vulnerability : CVE-2026-111759	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-111759

high

Tenable Plugins

high

high

high