Tails 6.15.1 has been released as an emergency update to address critical security vulnerabilities found in the Tor Browser. This update includes the integration of Tor Browser version 14.5.2, which fixes security issues highlighted in the Mozilla Foundation Security Advisory 2025-37. These vulnerabilities could allow an attacker to perform out-of-bounds reads or writes on JavaScript objects, though they do not compromise the Firefox sandbox security.
In addition to the Tor Browser update, Tails 6.15.1 also upgrades Thunderbird to version 128.10.1 and removes the unnecessary Tor Browser and Tor Browser (persistent) folders, a change made possible by improved confinement measures introduced in Tails 6.14.1.
Other enhancements in this release address several issues:
- The Unsafe Browser no longer shows up in the window list with the Tor Browser icon, correcting a previous user interface inconsistency.
- The WhisperBack error reporting tool has been made more robust to ensure better error reporting.
- USB tethering issues have been resolved, improving connectivity options for users.
For those interested in a complete overview of the changes and updates made in this release, a detailed changelog is available.
Extended Summary:
Tails, a privacy-focused operating system, continues to prioritize user safety with updates like version 6.15.1, which not only addresses immediate security concerns but also streamlines the user experience by removing redundant components. The update signifies Tails' commitment to maintaining a secure environment for its users while ensuring that its applications, such as Tor Browser and Thunderbird, remain up-to-date with the latest security practices. Future releases may continue to build upon these advancements, potentially introducing further enhancements in usability and security protocols
In addition to the Tor Browser update, Tails 6.15.1 also upgrades Thunderbird to version 128.10.1 and removes the unnecessary Tor Browser and Tor Browser (persistent) folders, a change made possible by improved confinement measures introduced in Tails 6.14.1.
Other enhancements in this release address several issues:
- The Unsafe Browser no longer shows up in the window list with the Tor Browser icon, correcting a previous user interface inconsistency.
- The WhisperBack error reporting tool has been made more robust to ensure better error reporting.
- USB tethering issues have been resolved, improving connectivity options for users.
For those interested in a complete overview of the changes and updates made in this release, a detailed changelog is available.
Extended Summary:
Tails, a privacy-focused operating system, continues to prioritize user safety with updates like version 6.15.1, which not only addresses immediate security concerns but also streamlines the user experience by removing redundant components. The update signifies Tails' commitment to maintaining a secure environment for its users while ensuring that its applications, such as Tor Browser and Thunderbird, remain up-to-date with the latest security practices. Future releases may continue to build upon these advancements, potentially introducing further enhancements in usability and security protocols
Tails 6.15.1 released
Tails 6.15.1 is a critical update aimed at resolving security vulnerabilities in the Tor Browser. The updates encompass Tor Browser 14.5.2, Thunderbird 128.10.1, and the elimination of Tor Browser and Tor Browser folders. Additional improvements encompass addressing Unsafe Browser concerns, enhancing the robustness of WhisperBack error reporting, and rectifying USB tethering issues.
