Inefficient Algorithmic Complexity Affecting org.webjars.npm:markdown-it package, versions [15.0.0,15.0.3)[14.1.0,14.3.3)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published24 Oct 2026
- disclosed20 Oct 2026
- creditAdrian Korwel
Introduced: 20 Oct 2026
NewCVE-2026-111758 (opens in a new tab)How to fix?
Upgrade org.webjars.npm:markdown-it to version 15.0.3, 14.3.3 or higher.
Overview
org.webjars.npm:markdown-it is a modern pluggable markdown parser.
Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in the reference block rule (src/rules_block/reference.ts) via parsing of reference labels. An attacker can supply input containing a long reference label, triggering quadratic time complexity during parsing and causing the process to hang.