Detections
Analytics
CVE-2026-1528
high
Description
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.
References
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1528.json
https://hackerone.com/reports/3537648
https://github.com/nodejs/undici/security/advisories/GHSA-f269-vfmq-vjvj
https://cna.openjsf.org/security-advisories.html
https://bugzilla.redhat.com/show_bug.cgi?id=2447145
https://access.redhat.com/security/cve/CVE-2026-1528
https://access.redhat.com/errata/RHSA-2026:9742
https://access.redhat.com/errata/RHSA-2026:7983
https://access.redhat.com/errata/RHSA-2026:7675
https://access.redhat.com/errata/RHSA-2026:7670
https://access.redhat.com/errata/RHSA-2026:7350
https://access.redhat.com/errata/RHSA-2026:7310
https://access.redhat.com/errata/RHSA-2026:7302
https://access.redhat.com/errata/RHSA-2026:7123
https://access.redhat.com/errata/RHSA-2026:7080
https://access.redhat.com/errata/RHSA-2026:5807
https://access.redhat.com/errata/RHSA-2026:34342
https://access.redhat.com/errata/RHSA-2026:21931
https://access.redhat.com/errata/RHSA-2026:21772