New Local Privilege Escalation Vulnerability CVE-2026-31431 Affects Multiple Linux Distributions

A recently disclosed Local Privilege Escalation (LPE) vulnerability, referenced as CVE-2026-31431, is described as effective across multiple Linux distributions. The exploit is available on GitHub under the repository Theori-lO/copy-fail-CVE-2026-31431. The post suggests potential implications for shared hosting environments in Capture The Flag (CTF) competitions, particularly mentioning a possible Kubernetes escape scenario.