Tails 7.9.1 is a security-focused release that updates Tor Browser to 15.0.17, the Tor client to 0.4.9.11, and the Linux kernel to 6.12.94. The kernel update patches two CVEs — CVE-2026-43503 (DirtyClone) and CVE-2026-46331 (PACKET_EDIT_MEME) — both privilege escalation vulnerabilities that could allow a malicious application to gain admin rights and potentially deanonymize users. The threat is considered unlikely but plausible for well-resourced attackers such as governments or hacking firms. Automatic upgrades are available from Tails 7.0 or later.
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