EUVD-2026-17176
2026-03-30
hackerone
5.3
CVSS 3.0
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CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Lifecycle Timeline
4
Patch Released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 30, 2026 - 19:30 vuln.today
EUVD ID Assigned
Mar 30, 2026 - 19:30 euvd
EUVD-2026-17176
CVE Published
Mar 30, 2026 - 19:07 nvd
MEDIUM 5.3
Description
A memory leak occurs in Node.js HTTP/2 servers when a client sends WINDOW_UPDATE frames on stream 0 (connection-level) that cause the flow control window to exceed the maximum value of 2³¹-1. The server correctly sends a GOAWAY frame, but the Http2Session object is never cleaned up. This vulnerability affects HTTP2 users on Node.js 20, 22, 24 and 25.
Analysis
Memory leak in Node.js HTTP/2 servers allows remote unauthenticated attackers to exhaust server memory by sending crafted WINDOW_UPDATE frames on stream 0 that exceed the maximum flow control window value. Affected versions include Node.js 20, 22, 24, and 25. …
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Priority Score
27
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +26
POC: 0
Vendor Status
Ubuntu
Priority: Mediumnodejs
| Release | Status | Version |
|---|---|---|
| trusty | needs-triage | - |
| xenial | needs-triage | - |
| bionic | needs-triage | - |
| focal | needs-triage | - |
| jammy | needs-triage | - |
| noble | needs-triage | - |
| questing | needs-triage | - |
| upstream | released | 22.22.2+dfsg+~cs22.19.15-1 |
Debian
nodejs
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | vulnerable | 12.22.12~dfsg-1~deb11u4 | - |
| bullseye (security) | vulnerable | 12.22.12~dfsg-1~deb11u7 | - |
| bookworm, bookworm (security) | vulnerable | 18.20.4+dfsg-1~deb12u1 | - |
| trixie | fixed | 20.19.2+dfsg-1+deb13u2 | - |
| trixie (security) | fixed | 20.19.2+dfsg-1+deb13u2 | - |
| forky | vulnerable | 22.22.1+dfsg+~cs22.19.15-1 | - |
| sid | fixed | 22.22.2+dfsg+~cs22.19.15-1 | - |
| (unstable) | fixed | 22.22.2+dfsg+~cs22.19.15-1 | - |
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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