What is RHSA-2026:26247?

RHSA-2026:26247 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.3.4

Which CVE IDs does RHSA-2026:26247 cover?

RHSA-2026:26247 covers the following CVE IDs: CVE-2026-47774. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:26247?

RHSA-2026:26247 has a CVSS v3 base score of 7.5, published by Red Hat Product Security.

RHSA-2026:26247HighCVSS 7.5

Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.3.4

Vendor

Red Hat Product Security

Published

June 16, 2026

Last Modified

June 18, 2026

🔗 CVE IDs covered (1)

CVE-2026-47774 →

📋 Description

CVE-2026-47774 — envoy: envoy: HTTP/2 Remote Denial of Service via HPACK compression bomb and Slowloris-style attack

🔗 References (4)

selfhttps://access.redhat.com/errata/RHSA-2026:26247
externalhttps://access.redhat.com/security/cve/CVE-2026-47774
externalhttps://access.redhat.com/security/updates/classification/
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_26247.json