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Red Hat Security Advisory

RHSA-2026:89907

Red Hat Update Infrastructure 5.3 security update

Released 2026-10-26 · Red Hat rating Critical · View on Red Hat →

Fixed in

Fixes 7 records

Priority MEDIUM 42

libexpat before commit 13c5f63 contains a heap buffer over-read vulnerability in xmlparse.c.

CVSS 4.0HIGH 8.3 Network No auth No interaction EPSS 0.0032 Published 2026-10-07 Partial fix CWE-125
Priority LOW 36

libexpat versions 2.7.2 through 2.8.5 contain an integer overflow vulnerability in expat_realloc() function on 32-bit platforms when computing allocation sizes.

CVSS 4.0HIGH 8.2 Network No auth No interaction EPSS 0.00368 Published 2026-09-29 Partial fix CWE-190
Priority LOW 34

sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service (resource consumption from excessive authentication attempts) because MaxAuthTries was mishandled for GSSAPIAuthentication.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00618 Published 2026-07-08 Partial fix · 10.4 CWE-770
Priority LOW 32

The system certificate authority (CA) store in Red Hat products, distributed via ca-certificates RPM packages, included multiple root CA certificates of authorities, which signed intermediate CA certificates with weak pr…

CVSS 3.1MEDIUM 6.8 Network No auth User interaction EPSS 0.0031 Published 2026-10-21 Partial fix · 2026.2.92_v9.0.319-100.3.el10_2, 2026.2.92_v9.0.319-100.3.el10_0 +138 CWE-295
Priority LOW 24

internal-sftp in sshd in OpenSSH before 10.4 recognizes only the first 9 command-line arguments, which can be important if a later command-line argument would have helped to ensure the intended security properties of an…

CVSS 3.1MEDIUM 5.4 Network No auth User interaction EPSS 0.00175 Published 2026-07-08 Partial fix · 10.4 CWE-1284