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CVE-2026-59928 Mistune block_parser: quadratic-time parsing on long lists of repeated reference-link definitions

🗓️ 08 Jul 2026 16:23:21Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

Mistune block_parser causes quadratic parsing on long reference definitions, enabling denial of service; fixed in version three.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-59928
8 Jul 202616:23
attackerkb
CVE
CVE-2026-59928
8 Jul 202616:23
cve
EUVD
EUVD-2026-42338
8 Jul 202616:23
euvd
NVD
CVE-2026-59928
8 Jul 202617:17
nvd
Positive Technologies
PT-2026-56519
8 Jul 202600:00
ptsecurity
Vulnrichment
CVE-2026-59928 Mistune block_parser: quadratic-time parsing on long lists of repeated reference-link definitions
8 Jul 202616:23
vulnrichment
[
  {
    "vendor": "lepture",
    "product": "mistune",
    "versions": [
      {
        "version": "< 3.3.0",
        "status": "affected"
      }
    ]
  }
]

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