A practical look at what happens when kernel bugs meet containers.Author’s note: Refer to this Red Hat Security Bulletin for the most recent information about this CVE. This blog post was originally published on May 4, 2026 and has been updated. Today, I spent some time trying to break out of a Red Hat OpenShift container.No, not because I had to… but because CVE-2026-31431 dropped, and I wanted to see how bad it really is.Short answer: it’s real, it’s exploitable, and your default controls probably aren’t stopping it.Longer answer: defense-in-depth still matters… a lot. And this i
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