Security Bulletin: IBM App Connect Enterprise Certified Container UBI updates

Summary IBM App Connect Enterprise Certified Container ACEcc is built on the Red Hat Universal Base Images. ACEcc operator versions 12.0.25 LTS and 13.3.0 contain fixes to the listed CVEs found in the base images. This bulletin provides patch information to address the reported vulnerabilities...

UBUNTU-CVE-2026-12549

The fix for CVE-2026-2443 was regressed by a subsequent rework commit that replaced specific overflow checks with a general signed comparison. When a client sends a Range request with a suffix length exceeding the content size, the resulting negative start value is not properly clamped, leading t...