CVE-2026-1528
published 2026-03-12CVE-2026-1528: ImpactA server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends…
high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
ImpactA server can reply with a WebSocket frame using the 64-bit length form and an extremely large length. undici's ByteParser overflows internal math, ends up in an invalid state, and throws a fatal TypeError that terminates the process.
Patches
Patched in the undici version v7.24.0 and v6.24.0. Users should upgrade to this version or later.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | node-undici | < node-undici 7.24.5+dfsg+~cs3.2.0-1 (forky) | node-undici 7.24.5+dfsg+~cs3.2.0-1 (forky) |
| nodejs | undici | < 6.24.0 | 6.24.0 |
| nodejs | undici | >= 7.0.0 < 7.24.0 | 7.24.0 |
| undici | undici | — | — |
| undici | undici | >= 6.0.0 < 6.24.0 | 6.24.0 |
| undici | undici | >= 7.0.0 < 7.24.0 | 7.24.0 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH