The following vulnerabilities have been discovered in the webkit2gtk web engine: CVE-2021-30846 Sergei Glazunov discovered that processing maliciously crafted web content may lead to arbitrary code execution CVE-2021-30851 Samuel Gross discovered that processing maliciously crafted web content may lead to code execution CVE-2021-42762 An anonymous reporter discovered a limited Bubblewrap sandbox bypass that allows a sandboxed process to trick host processes into thinking the sandboxed process is not confined.