What is RHSA-2026:35453?

RHSA-2026:35453 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-2026:35453 cover?

RHSA-2026:35453 covers the following CVE IDs: CVE-2026-55203, CVE-2026-55204. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:35453?

RHSA-2026:35453 has a CVSS v3 base score of 7.5, published by Red Hat Product Security.

RHSA-2026:35453HighCVSS 7.5

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

Vendor

Red Hat Product Security

Published

July 3, 2026

Last Modified

July 26, 2026

🔗 CVE IDs covered (2)

CVE-2026-55203 →CVE-2026-55204 →

📋 Description

CVE-2026-55203 — haproxy: HAProxy: Response smuggling due to integer overflow in FastCGI record length handling CVE-2026-55204 — haproxy: HAProxy: Denial of Service via HPACK dynamic table insertions

🔗 References (6)

selfhttps://access.redhat.com/errata/RHSA-2026:35453
externalhttps://images.redhat.com/
externalhttps://access.redhat.com/security/cve/CVE-2026-55203
externalhttps://access.redhat.com/security/updates/classification/
externalhttps://access.redhat.com/security/cve/CVE-2026-55204
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_35453.json