CVE-2026-105830

Published 8 October 2026 · tracked since 9 October 2026

Description

league/commonmark from 2.0.0 before 2.10.2 contains a quadratic-time denial of service vulnerability in the GitHub Flavored Markdown Table extension's TableStartParser::tryStart() block-start scan. Unauthenticated attackers can submit a large paragraph of pipe-free lines not starting with letters, f

References

• NVD — National Vulnerability Database
• CVE.org record (MITRE)
• CISA Known Exploited Vulnerabilities catalog

Latest tracked vulnerabilities

• CVE-2026-107294 MEDIUM 6.5
• CVE-2026-107295 HIGH 7.6
• CVE-2026-107296 LOW 3.7
• CVE-2026-107297 MEDIUM 5.9
• CVE-2026-107290 MEDIUM 6.5
• CVE-2026-107291
• CVE-2026-107292 MEDIUM 6.4
• CVE-2026-107293
• CVE-2026-105436 HIGH 8.8
• CVE-2026-104077 HIGH 7.8

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