CVE-2026-86431 commonmark before 2.9.1 XSS via AttributesExtension form feed bypass
| Reporter | Title | Published | Views | Family All 14 |
|---|---|---|---|---|
 | CVE-2026-86431 | 7 Sep 202612:53 | – | cve |
 | CVE-2026-86431 | 7 Sep 202612:53 | – | debiancve |
 | EUVD-2026-72389 | 7 Sep 202612:53 | – | euvd |
 | CVE-2026-86431 | 7 Sep 202612:53 | – | mend |
 | CVE-2026-86431 | 7 Sep 202613:20 | – | nvd |
 | DEBIAN-CVE-2026-86431 | 7 Sep 202613:20 | – | osv_debian |
 | GHSA-F8FG-PG57-V4J8 league/commonmark XSS: `on*` event-handler filter in `AttributesExtension` bypassed with a U+000C form feed | 1 Sep 202620:18 | – | osv_ghsa |
 | UBUNTU-CVE-2026-86431 | 7 Sep 202613:20 | – | osv_ubuntu |
 | PT-2026-86797 | 7 Sep 202600:00 | – | ptsecurity |
 | CVE-2026-86431: Improper Neutralization of Input During Web Page Generation | 7 Sep 202600:00 | – | rapid7 |
10
[
{
"vendor": "thephpleague",
"product": "commonmark",
"defaultStatus": "unaffected",
"versions": [
{
"version": "2.7.0",
"status": "affected",
"versionType": "semver",
"lessThan": "2.9.1"
},
{
"version": "2.9.1",
"status": "unaffected",
"versionType": "semver"
}
],
"packageURL": "pkg:composer/league/commonmark"
}
]Data
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08 Oct 2026 15:25Current
CVSS 46.9
CVSS 3.17.2
EPSS0.00388
SSVC