Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

🔗 CVE IDs covered (1)

📋 Description

🎯 Affected products19

• Red Hat Hardened Images
• cups-1:2.4.19-4.3.hum1@aarch64 as a component of Red Hat Hardened Images
• cups-1:2.4.19-4.3.hum1@src as a component of Red Hat Hardened Images
• cups-1:2.4.19-4.3.hum1@x86_64 as a component of Red Hat Hardened Images
• cups-client-1:2.4.19-4.3.hum1@aarch64 as a component of Red Hat Hardened Images
• cups-client-1:2.4.19-4.3.hum1@x86_64 as a component of Red Hat Hardened Images
• cups-devel-1:2.4.19-4.3.hum1@aarch64 as a component of Red Hat Hardened Images
• cups-devel-1:2.4.19-4.3.hum1@x86_64 as a component of Red Hat Hardened Images
• cups-filesystem-1:2.4.19-4.3.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images
• cups-filesystem-1:2.4.19-4.3.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images
• cups-filesystem-1:2.4.19-4.3.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images
• cups-ipptool-1:2.4.19-4.3.hum1@aarch64 as a component of Red Hat Hardened Images
• cups-ipptool-1:2.4.19-4.3.hum1@x86_64 as a component of Red Hat Hardened Images
• cups-libs-1:2.4.19-4.3.hum1@aarch64 as a component of Red Hat Hardened Images
• cups-libs-1:2.4.19-4.3.hum1@x86_64 as a component of Red Hat Hardened Images
• cups-lpd-1:2.4.19-4.3.hum1@aarch64 as a component of Red Hat Hardened Images
• cups-lpd-1:2.4.19-4.3.hum1@x86_64 as a component of Red Hat Hardened Images
• cups-printerapp-1:2.4.19-4.3.hum1@aarch64 as a component of Red Hat Hardened Images
• cups-printerapp-1:2.4.19-4.3.hum1@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/ Workaround: Restrict network access to the CUPS service (port 631/tcp) to trusted hosts only, and avoid exposing cupsd to untrusted networks. If email notifications are not required, do not configure mailto subscriptions or remove/disable the mailto notifier. Ensure only a trusted mail transfer agent is installed and referenced from CUPS mailto configuration. Monitor for unexpected printer subscriptions and unusual sendmail activity from the lp user.

🔗 References (5)

• selfhttps://access.redhat.com/errata/RHSA-2026:77638
• externalhttps://access.redhat.com/security/cve/CVE-2026-105326
• externalhttps://access.redhat.com/security/updates/classification/
• externalhttps://images.redhat.com/
• selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_77638.json