CVE-2026-1528 Affecting v8-12.4-devel package, versions <3:12.4.254.21-1.22.22.2.1.module+el8.10.0+90865+d647ef3a


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.13% (33rd percentile)

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  • Snyk IDSNYK-ORACLE8-V8124DEVEL-16002012
  • published13 Apr 2026
  • disclosed12 Mar 2026

Introduced: 12 Mar 2026

CVE-2026-1528  (opens in a new tab)

How to fix?

Upgrade Oracle:8 v8-12.4-devel to version 3:12.4.254.21-1.22.22.2.1.module+el8.10.0+90865+d647ef3a or higher.
This issue was patched in ELSA-2026-7123.

NVD Description

Note: Versions mentioned in the description apply only to the upstream v8-12.4-devel package and not the v8-12.4-devel package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1