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CVE-2026-48988 markdown-it: Quadratic complexity DoS in smartquotes rule via replaceAt string operations

🗓️ 17 Jun 2026 20:54:06Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

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 string...

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Affected
Refs
ReporterTitlePublishedViews
Family
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CVE-2026-48988 vulnerabilities
17 Jun 202620:24
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CVE-2026-48988
23 May 202623:47
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17 Jun 202620:54
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EUVD
EUVD-2026-37799
17 Jun 202620:54
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markdown-it: Quadratic complexity DoS in smartquotes rule via replaceAt string operations
15 Jun 202620:41
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CVE-2026-48988
17 Jun 202621:16
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OSV
GHSA-6V5V-WF23-FMFQ markdown-it: Quadratic complexity DoS in smartquotes rule via replaceAt string operations
15 Jun 202620:41
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MINI-79GR-XRQF-9XXC
16 Jun 202617:23
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MINI-8FX6-26F8-VHQF
16 Jun 202617:42
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MINI-8MQQ-R4F3-GRGP
16 Jun 202617:42
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Rows per page
[
  {
    "vendor": "markdown-it",
    "product": "markdown-it",
    "versions": [
      {
        "version": "< 14.2.0",
        "status": "affected"
      }
    ]
  }
]

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17 Jun 2026 20:54Current
CVSS 3.15.3
EPSS0.00051
6