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 […]

Ubuntu flaw CVE-2026-3888 lets attackers gain root via a systemd timing exploit, affecting Desktop 24.04+ with high severity. Qualys researchers found a high-severity flaw, tracked as CVE-2026-3888 (CVSS score of 7.8), in Ubuntu Desktop 24.04+, which allows attackers to exploit a systemd cleanup timing issue to escalate privileges to root and potentially take full control […]

A high-severity security flaw affecting default installations of Ubuntu Desktop versions 24.04 and later could be exploited to escalate privileges to the root level. Tracked as CVE-2026-3888 (CVSS score: 7.8), the issue could allow an attacker to seize control of a susceptible system. "This flaw (CVE-2026-3888) allows an unprivileged local attacker to escalate privileges to full root access

The Qualys Threat Research Unit has identified a Local Privilege Escalation (LPE) vulnerability affecting default installations of Ubuntu Desktop version 24.04 and later. This flaw (CVE-2026-3888) allows an unprivileged local attacker to escalate privileges to full root access through the interaction of two standard system components: snap-confine and systemd-tmpfiles. While the exploit requires a specific […]