RHSA-2026:98060 - Security Advisory

Topic

An update for nodejs26 is now available for Red Hat Enterprise Linux 10.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.

Security Fix(es):

• undici: undici: Authentication bypass via cross-origin cache poisoning due to missing origin isolation (CVE-2026-85152)
• undici: undici: TLS certificate validation bypass in BalancedPool via dropped connect options (CVE-2026-84961)
• undici: undici: Denial of Service via unrequested WebSocket subprotocol (CVE-2026-19534)

Bug Fix(es) and Enhancement(s):

• Update Node.js 26 spec file for Rust package integration [rhel-10.3.z] (JIRA:RHEL-256956)
• nodejs26: Rebase to the latest Node.js 26 release [rhel-10.3.z] (JIRA:RHEL-262243)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 10 x86_64
• Red Hat Enterprise Linux for IBM z Systems 10 s390x
• Red Hat Enterprise Linux for Power, little endian 10 ppc64le
• Red Hat Enterprise Linux for ARM 64 10 aarch64

Fixes

• BZ - 2528717 - CVE-2026-85152 undici: undici: Authentication bypass via cross-origin cache poisoning due to missing origin isolation
• BZ - 2528735 - CVE-2026-84961 undici: undici: TLS certificate validation bypass in BalancedPool via dropped connect options
• BZ - 2528759 - CVE-2026-19534 undici: undici: Denial of Service via unrequested WebSocket subprotocol

CVEs

• CVE-2026-19534
• CVE-2026-84961
• CVE-2026-85152

References

• https://access.redhat.com/security/updates/classification/#important