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7.5

Red Hat osbuild-composer: Unrestricted File Upload Allows Malicious Data Injection

RHSA-2026:2688
Summary

A security issue was found in osbuild-composer, a tool used to build operating system images. An attacker could potentially upload malicious files, allowing them to inject malicious data into the system. To fix this issue, ensure you have the latest version of osbuild-composer installed on your system.

What to do
  • Update redhat osbuild-composer to version 0:76.1-4.el9_2.
  • Update redhat osbuild-composer-core to version 0:76.1-4.el9_2.
  • Update redhat osbuild-composer-core-debuginfo to version 0:76.1-4.el9_2.
  • Update redhat osbuild-composer-debuginfo to version 0:76.1-4.el9_2.
  • Update redhat osbuild-composer-debugsource to version 0:76.1-4.el9_2.
  • Update redhat osbuild-composer-dnf-json to version 0:76.1-4.el9_2.
  • Update redhat osbuild-composer-tests-debuginfo to version 0:76.1-4.el9_2.
  • Update redhat osbuild-composer-worker to version 0:76.1-4.el9_2.
  • Update redhat osbuild-composer-worker-debuginfo to version 0:76.1-4.el9_2.
Affected software
VendorProductAffected versionsFix available
redhat osbuild-composer <= 0:76.1-4.el9_2 0:76.1-4.el9_2
redhat osbuild-composer-core <= 0:76.1-4.el9_2 0:76.1-4.el9_2
redhat osbuild-composer-core-debuginfo <= 0:76.1-4.el9_2 0:76.1-4.el9_2
redhat osbuild-composer-debuginfo <= 0:76.1-4.el9_2 0:76.1-4.el9_2
redhat osbuild-composer-debugsource <= 0:76.1-4.el9_2 0:76.1-4.el9_2
redhat osbuild-composer-dnf-json <= 0:76.1-4.el9_2 0:76.1-4.el9_2
redhat osbuild-composer-tests-debuginfo <= 0:76.1-4.el9_2 0:76.1-4.el9_2
redhat osbuild-composer-worker <= 0:76.1-4.el9_2 0:76.1-4.el9_2
redhat osbuild-composer-worker-debuginfo <= 0:76.1-4.el9_2 0:76.1-4.el9_2
Published: 17 Feb 2026 · Updated: 6 Mar 2026 · First seen: 6 Mar 2026