Dossier
local privilege escalation
Coverage of local privilege escalation in the Nexus archive.
- CISA Adds Actively Exploited Linux Root Access Bug CVE-2026-31431 to KEV
CISA added a critical Linux privilege escalation vulnerability (CVE-2026-31431) to its KEV catalog due to active exploitation. The flaw, with a CVSS score of 7.8, allows local attackers to gain root access on affected Linux distributions.
- New Linux 'Copy Fail' Vulnerability Enables Root Access on Major Distributions
A high-severity Linux local privilege escalation vulnerability, dubbed Copy Fail (CVE-2026-31431) with a CVSS score of 7.8, allows unprivileged users to gain root access by manipulating the page cache of readable files. The flaw was disclosed by cybersecurity researchers from Xint.io and Theori.