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Red Hat Security Advisory

RHSA-2026:38504

container-tools:rhel8 security update

Released 2026-07-13 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 3 records

Priority MEDIUM 40

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00875 Published 2026-05-07 Partial fix · 1.25.10, 1.26.3 CWE-415