CVE-2026-34078 - Vulnerability Details

Related Threat Clusters

• Multiple High-Risk Vulnerabilities Discovered in Gentoo Linux Packages

  A series of high-severity vulnerabilities have been identified across various Gentoo Linux packages, including Apache HTTPD, Exim, Dnsmasq, and others. These vulnerabilities, such as CVE-2026-41163 and CVE-2026-40684,…

  8 articles · Updated August 14, 2026
• Tails 7.6.2 Emergency Update Fixes Critical Flatpak Vulnerability

  The Tails Project has released an emergency update to Tails version 7.6.2 to address a critical security vulnerability in Flatpak, identified as CVE-2026-34078. This vulnerability, with a CVSS score of 9.3, allows…

  2 articles · Updated April 16, 2026
• Critical Flatpak Vulnerabilities Enable Sandbox Escape on Linux Systems

  Flatpak has disclosed several vulnerabilities, including a critical one allowing sandbox escape with full host access. This vulnerability enables a malicious app to gain arbitrary read and write access to host files,…

  2 articles · Updated August 14, 2026
• Flatpak 1.16.4 Addresses Critical Security Flaws Including Sandbox Escape

  Flatpak released version 1.16.4 on April 8, 2026, fixing four security vulnerabilities. The most critical issue, CVE-2026-34078, allows a complete sandbox escape, enabling unauthorized host file access and code…

  4 articles · Updated April 8, 2026

Recent Intelligence Reports

• Gentoo Flatpak High Sandbox Escape Issues GLSA-202608 — Linuxsecurity · August 14, 2026
• Emergency Flatpak fixes released: full sandbox escape possible — Cybernews · August 12, 2026
• Anonymizing Linux: Emergency update to Tails 7.6.2 closes Flatpak vulnerability — Heise.De · April 16, 2026
• Flatpak 1.16.4 Patches a Silent Security Flaw That Let Sandboxed Apps Peek Outside Their Walls — Ground.News · April 8, 2026
• Flatpak 1.16.4 fixes sandbox escape and three other security flaws — Feeds2.Feedburner · April 8, 2026

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