========================================================================== Ubuntu Security Notice USN-8288-1 May 20, 2026 bubblewrap vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 26.04 LTS - Ubuntu 25.10 Summary: Bubblewrap could be made to bypass sandbox restrictions. Software Description: - bubblewrap: Low-level unprivileged sandboxing tool used by Flatpak and similar projects Details: It was discovered that Bubblewrap incorrectly handled the sandbox setup phase when installed in setuid mode. A local attacker could possibly use this issue to bypass sandbox restrictions. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS bubblewrap 0.11.1-1ubuntu0.1 Ubuntu 25.10 bubblewrap 0.11.0-2ubuntu0.1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8288-1 CVE-2026-41163 Package Information: https://launchpad.net/ubuntu/+source/bubblewrap/0.11.1-1ubuntu0.1 https://launchpad.net/ubuntu/+source/bubblewrap/0.11.0-2ubuntu0.1
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