CVE-2026-109855 undici WebSocket client vulnerable to Denial of Service via failed HTTP/2 handshake
| Reporter | Title | Published | Views | Family All 13 |
|---|---|---|---|---|
 | CVE-2026-109855 | 15 Oct 202608:40 | – | circl |
 | CVE-2026-109855 | 15 Oct 202608:12 | – | cve |
 | CVE-2026-109855 | 15 Oct 202608:12 | – | debiancve |
 | EUVD-2026-101959 | 15 Oct 202608:12 | – | euvd |
 | CVE-2026-109855 | 15 Oct 202609:17 | – | nvd |
 | PT-2026-114837 | 15 Oct 202600:00 | – | ptsecurity |
 | CVE-2026-109855 | 15 Oct 202609:39 | – | redhatcve |
 | Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update | 6 Oct 202608:26 | – | redhat |
| undici: undici: Denial of Service via failed HTTP/2 WebSocket handshake | 6 Oct 202608:26 | – | redhat |
| Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update | 14 Oct 202622:13 | – | redhat |
10
[
{
"vendor": "undici",
"product": "undici",
"defaultStatus": "unaffected",
"versions": [
{
"versionType": "semver",
"status": "affected",
"version": "8.11.0",
"lessThan": "8.11.2"
},
{
"versionType": "semver",
"status": "unaffected",
"version": "8.11.2"
}
],
"packageURL": "pkg:npm/undici"
}
]Data
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15 Oct 2026 08:12Current
CVSS 3.17.5
EPSS0.00278
SSVC