ThreatRoundup

CVE Watch

Every new High and Critical vulnerability, updated automatically from NVD, FIRST EPSS and CISA’s Known Exploited Vulnerabilities list, with whether public exploit code exists. Critical CVEs and exploited Highs are also posted to Bluesky as they appear.

All High & Critical Critical High Exploited (KEV) Public exploit

  • High CVSS 8.7 EPSS 0.4% Remote Attacker lepture

    CVE-2026-115352: lepture mistune (High, CVSS 8.7)

    Mistune before 3.3.0 contains an algorithmic complexity vulnerability in the inline link parser that allows unauthenticated attackers to exhaust CPU by submitting long runs of unmatched '[' characters. Attackers can send small…

    Published Oct 22, 2026

  • Critical CVSS 9.2 EPSS 0.4% Remote Attacker lepture

    CVE-2026-115353: lepture mistune (Critical, CVSS 9.2)

    Mistune before 3.3.0 contains a path traversal vulnerability in the RST include directive that allows attackers to read arbitrary files by supplying relative or absolute paths. Attackers can submit markdown containing include…

    Published Oct 22, 2026

  • High CVSS 8.7 EPSS 0.4% Remote Attacker lepture

    CVE-2026-115355: lepture mistune (High, CVSS 8.7)

    Mistune before 3.3.0 contains a path traversal vulnerability in the Include directive that allows attackers to read arbitrary files by supplying ../ sequences in include paths. Attackers can also inject HTML through…

    Published Oct 22, 2026

  • High CVSS 8.7 EPSS 0.4% Remote Attacker lepture

    CVE-2026-115347: lepture mistune (High, CVSS 8.7)

    Mistune before 3.3.0 contains an inefficient algorithmic complexity vulnerability in parse_link_text that allows remote attackers to cause denial of service through unbalanced square brackets. Attackers can submit markdown containing long runs of…

    Published Oct 22, 2026

  • High CVSS 8.7 EPSS 0.4% Remote Attacker lepture

    CVE-2026-115348: lepture mistune (High, CVSS 8.7)

    Mistune from 3.0.0 before 3.3.0 contains an algorithmic complexity vulnerability in the inline link parser's parse_link_text function that allows unauthenticated attackers to exhaust CPU with unbalanced brackets. Attackers can submit Markdown containing…

    Published Oct 22, 2026

  • High CVSS 8.7 EPSS 0.3% Remote Attacker lepture

    CVE-2026-115349: lepture mistune (High, CVSS 8.7)

    Mistune from 3.0.0 before 3.3.0 contains an algorithmic complexity denial of service vulnerability in the parse_link_text function in src/mistune/helpers.py. Attackers can submit markdown with deeply nested square brackets triggering quadratic parsing time,…

    Published Oct 22, 2026