CVE-2026-56848 Affecting v8-13.6-devel package, versions <3:13.6.233.17-1.24.19.0.1.module+el8.10.0+91018+78697c42


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.49% (40th percentile)

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  • Snyk IDSNYK-ORACLE8-V8136DEVEL-19514726
  • published3 Sept 2026
  • disclosed4 Aug 2026

Introduced: 4 Aug 2026

CVE-2026-56848  (opens in a new tab)

How to fix?

Upgrade Oracle:8 v8-13.6-devel to version 3:13.6.233.17-1.24.19.0.1.module+el8.10.0+91018+78697c42 or higher.
This issue was patched in ELSA-2026-62583-0.

NVD Description

Note: Versions mentioned in the description apply only to the upstream v8-13.6-devel package and not the v8-13.6-devel package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

A flaw in Node.js HTTP/2 handling allows nghttp2_session_mem_send() to be called re-entrantly while nghttp2_session_mem_recv() is executing, resulting in a heap-use-after-free.

This vulnerability affects Node.js 26.x, 24.x, and 22.x.

CVSS Base Scores

version 3.1