RHSA-2026:89193MediumCVSS 5.5

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

Published
October 25, 2026
Last Modified
October 30, 2026

🔗 CVE IDs covered (2)

CVE-2026-105923 →CVE-2026-107157 →

📋 Description

CVE-2026-105923 — qt6: qt6: Denial of Service via crafted SVG in VectorImage CVE-2026-107157 — qt: Out-of-bounds read vulnerability in QCborValue::fromCbor() impacts Qt Framework

🎯 Affected products11

  • Red Hat Hardened Images
  • qt6-0:6.12.0-1.hum1@src as a component of Red Hat Hardened Images
  • qt6-filesystem-0:6.12.0-1.hum1@aarch64 as a component of Red Hat Hardened Images
  • qt6-filesystem-0:6.12.0-1.hum1@s390x as a component of Red Hat Hardened Images
  • qt6-filesystem-0:6.12.0-1.hum1@x86_64 as a component of Red Hat Hardened Images
  • qt6-rpm-macros-0:6.12.0-1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images
  • qt6-rpm-macros-0:6.12.0-1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images
  • qt6-rpm-macros-0:6.12.0-1.hum1@noarch@public-hummingbird-x86_64-rpms as a component of Red Hat Hardened Images
  • qt6-srpm-macros-0:6.12.0-1.hum1@noarch@public-hummingbird-aarch64-rpms as a component of Red Hat Hardened Images
  • qt6-srpm-macros-0:6.12.0-1.hum1@noarch@public-hummingbird-s390x-rpms as a component of Red Hat Hardened Images
  • qt6-srpm-macros-0:6.12.0-1.hum1@noarch@public-hummingbird-x86_64-rpms 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: Avoid opening or rendering untrusted SVG files in applications utilizing Qt6 QML VectorImage components. Operational controls: 1. Verify that automated pipelines and users only process vector graphics received from trusted, verified sources. 2. Where handling untrusted graphics is necessary, isolate Qt6-based applications within a sandbox or unprivileged container environment (such as bubblewrap or an isolated container) to confine potential application crashes. Caveats: Operational sandboxing mitigates blast radius on the broader host system, but it does not prevent the individual application process from terminating abnormally when an affected file is parsed. Workaround: Refactor application code to utilize the QByteArray overload of QCborValue::fromCbor() rather than pointer-and-size variants. Validate and enforce strict length constraints on untrusted CBOR payloads prior to parsing.

🔗 References (11)