RHSA-2026:4753HighCVSS 7.5

Red Hat Security Advisory: osbuild-composer security update

Published
March 17, 2026
Last Modified
September 2, 2026

🔗 CVE IDs covered (2)

CVE-2025-61726 →CVE-2025-61729 →

📋 Description

CVE-2025-61726 — golang: net/url: Memory exhaustion in query parameter parsing in net/url CVE-2025-61729 — crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate

🎯 Affected products31

  • Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • Red Hat Enterprise Linux AppStream TUS (v.8.8)
  • osbuild-composer-0:75-7.el8_8.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-0:75-7.el8_8.src as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-0:75-7.el8_8.src as a component of Red Hat Enterprise Linux AppStream TUS (v.8.8)
  • osbuild-composer-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream TUS (v.8.8)
  • osbuild-composer-core-0:75-7.el8_8.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-core-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-core-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream TUS (v.8.8)
  • osbuild-composer-core-debuginfo-0:75-7.el8_8.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-core-debuginfo-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-core-debuginfo-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream TUS (v.8.8)
  • osbuild-composer-debuginfo-0:75-7.el8_8.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-debuginfo-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-debuginfo-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream TUS (v.8.8)
  • osbuild-composer-debugsource-0:75-7.el8_8.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-debugsource-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-debugsource-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream TUS (v.8.8)
  • osbuild-composer-dnf-json-0:75-7.el8_8.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-dnf-json-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-dnf-json-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream TUS (v.8.8)
  • osbuild-composer-tests-debuginfo-0:75-7.el8_8.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-tests-debuginfo-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-tests-debuginfo-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream TUS (v.8.8)
  • osbuild-composer-worker-0:75-7.el8_8.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-worker-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-worker-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream TUS (v.8.8)
  • osbuild-composer-worker-debuginfo-0:75-7.el8_8.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • osbuild-composer-worker-debuginfo-0:75-7.el8_8.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.8.8)
  • +1 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.

🔗 References (5)