What is RHSA-2026:42986?

RHSA-2026:42986 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Which CVE IDs does RHSA-2026:42986 cover?

RHSA-2026:42986 covers the following CVE IDs: CVE-2026-59725. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:42986?

RHSA-2026:42986 has a CVSS v3 base score of 7.5, published by Red Hat Product Security.

Which products are affected by RHSA-2026:42986?

RHSA-2026:42986 affects 4 products, including: Red Hat Hardened Images; dotnet8-0-main@aarch64 as a component of Red Hat Hardened Images; dotnet8-0-main@src as a component of Red Hat Hardened Images; dotnet8-0-main@x86_64 as a component of Red Hat Hardened Images.

RHSA-2026:42986HighCVSS 7.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Vendor

Red Hat Product Security

Published

July 21, 2026

Last Modified

August 16, 2026

🔗 CVE IDs covered (1)

CVE-2026-59725 →

📋 Description

CVE-2026-59725 — socket.io: engine.io: Socket.IO: Denial of Service via invalid binary POST requests

🎯 Affected products4

Red Hat Hardened Images
dotnet8-0-main@aarch64 as a component of Red Hat Hardened Images
dotnet8-0-main@src as a component of Red Hat Hardened Images
dotnet8-0-main@x86_64 as a component of Red Hat Hardened Images

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/

🔗 References (5)

selfhttps://access.redhat.com/errata/RHSA-2026:42986
externalhttps://images.redhat.com/
externalhttps://access.redhat.com/security/cve/CVE-2026-59725
externalhttps://access.redhat.com/security/updates/classification/
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_42986.json