Authentication Bypass and Linux Kernel Flaws Under Active Exploitation

The Daily CVE Update · Aug 28, 2026 · 14m

Authentication Bypass and Linux Kernel Flaws Under Active Exploitation

Three critical vulnerabilities have been confirmed as actively exploited in the wild, triggering urgent additions to CISA’s Known Exploited Vulnerabilities catalogue. CVE-2023-49105, an authentication bypass in ownCloud, allows attackers to access, modify, or delete files without credentials when only a username is known. Despite being disclosed in 2023, active exploitation has only now escalated. CVE-2026-53362, a Linux kernel privilege escalation flaw affecting major distributions and cloud infrastructure, enables…