VDB
DEBIAN-CVE-2026-21714
DEBIAN-CVE-2026-21714
PUBLISHED
CVSS 5.300000190734863 MEDIUM
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.
Risk Scores
CVSS v3.0
5.300000190734863
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | nodejs | 20.19.5+dfsg+~cs20.19.24-1, 12.21.0~dfsg-5, 12.22.10~dfsg-1 |
| Debian:13 | nodejs | 0, 20.19.2+dfsg, 20.19.2+dfsg |
| Debian:12 | nodejs | *, 22.18.0+dfsg+~cs22.17.2-2, 22.18.0+dfsg-1 |
| Debian:14 | nodejs | 22.12.0+dfsg-1, 22.12.0+dfsg-2, 22.14.0+dfsg-1 |
Timeline
- Mar 30, 2026 CVE Published
- May 14, 2026 CVE Updated