What is RHSA-2026:9031?

RHSA-2026:9031 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: python-urllib3 security update

Which CVE IDs does RHSA-2026:9031 cover?

RHSA-2026:9031 covers the following CVE IDs: CVE-2025-66471. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:9031?

RHSA-2026:9031 has a CVSS v3 base score of 7.5, published by Red Hat Product Security.

RHSA-2026:9031HighCVSS 7.5

Red Hat Security Advisory: python-urllib3 security update

Vendor

Red Hat Product Security

Published

April 20, 2026

Last Modified

June 22, 2026

🔗 CVE IDs covered (1)

CVE-2025-66471 →

📋 Description

CVE-2025-66471 — urllib3: urllib3 Streaming API improperly handles highly compressed data

🔗 References (4)

selfhttps://access.redhat.com/errata/RHSA-2026:9031
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2419467
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_9031.json