A Red Hat Enterprise Linux SELinux 0day

A researcher published a RHEL zero-day originally prepared for Pwn2Own Berlin, reopening the question of how much SELinux containment matters in 2026

Does SELinux even matter in 2026? Anyway, here's a Red Hat Enterprise Linux 0day I originally prepared for Pwn2Own Berlin 2026. Unfortunately, I didn't get an entry token for it :<

Ranked #23 on backlist 2026-05-26 (26 May 2026 UTC) · by @rewhiles (rewhile) · view on X ↗

How it ranks: Backlist reads my Twitter/X timeline, scores every tweet for substance with an LLM rubric (not engagement), and publishes the daily top picks with a one-line takeaway. Curated by Surya Dantuluri.