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CVE-2026-86428

🗓️ 07 Sep 2026 12:53:49Reported by VulnCheckType 
cve
 cve
🔗 web.nvd.nist.gov👁 29 Views

Quadratic-time DoS in commonmark 1.5.0 before 2.10.0 via AttributesExtension merging.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-86428
7 Sep 202614:04
–circl
cvelist
Cvelist
CVE-2026-86428 commonmark 1.5.0 before 2.10.0 Denial of Service via Attributes
7 Sep 202612:53
–cvelist
debiancve
Debian CVE
CVE-2026-86428
7 Sep 202612:53
–debiancve
euvd
EUVD
EUVD-2026-72386
7 Sep 202612:53
–euvd
mend
Mend
CVE-2026-86428
7 Sep 202612:53
–mend
nvd
NVD
CVE-2026-86428
7 Sep 202613:20
–nvd
osv_debian
osv_debian
DEBIAN-CVE-2026-86428
7 Sep 202613:20
–osv_debian
osv_ghsa
osv_ghsa
GHSA-8RR7-CVQ3-GMFH league/commonmark: Denial of service via distinctly-named attributes in the Attributes extension
1 Sep 202620:28
–osv_ghsa
osv_ubuntu
osv_ubuntu
UBUNTU-CVE-2026-86428
7 Sep 202613:20
–osv_ubuntu
ptsecurity
Positive Technologies
PT-2026-86794
7 Sep 202600:00
–ptsecurity
Rows per page
NVD
Vulners
CNA
Node
thephpleaguecommonmarkRange1.5.0–2.10.0
[
  {
    "vendor": "thephpleague",
    "product": "commonmark",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "version": "1.5.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "2.10.0"
      },
      {
        "version": "2.10.0",
        "status": "unaffected",
        "versionType": "semver"
      }
    ],
    "packageURL": "pkg:composer/league/commonmark"
  }
]

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08 Oct 2026 16:17Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.17.5
CVSS 48.7
EPSS0.00493
SSVC
29