Qualys disclosed CVE-2026-8933, a high-severity Ubuntu flaw that lets local attackers gain root privileges through a race condition in snap-confine. Qualys has disclosed a high-severity local privilege escalation vulnerability, tracked as CVE-2026-8933 (CVSS score of 7.8), affecting default installations of Ubuntu Desktop 24.04, 25.10, and 26.04. The flaw stems from a race condition introduced during a […]

Cybersecurity researchers have disclosed details of a new local privilege escalation (LPE) vulnerability in snap-confine that an unprivileged user can trigger to obtain root access and gain complete control of a target environment. The high-severity flaw, tracked as CVE-2026-8933 (CVSS score: 7.8), impacts default installations of Ubuntu Desktop 24.04, 25.10, and 26.04. The disclosure comes as

The Qualys Threat Research Unit (TRU) has identified a Local Privilege Escalation (LPE) vulnerability in snap-confine (CVE-2026-8933). This flaw allows an unprivileged local user to gain full root access on default installations of Ubuntu Desktop 24.04, 25.10, and 26.04. The issue stems from a security hardening change that inadvertently introduced a race condition during sandbox […]