Thunderbird’s Big Fix: Sandbox Escapes and Invalid Pointers No Match for 140.2 Update!
Thunderbird 140.2 swoops in to save the day! With scripting safely disabled in emails, it seems even bugs prefer sandbox escapes in browser-like settings. The high-impact fix targets a pesky pointer in the audio/video GMP component, proving once again that Thunderbird is serious about security, and you should be too!

Hot Take:
Listen up, folks! Mozilla’s Thunderbird might be soaring through the skies of high security, but it hit a bit of turbulence with some sneaky vulnerabilities. Thankfully, they’ve patched it up, but it’s a reminder that even our digital birds need a good check-up every now and then. Now, back to your regularly scheduled emailing without the fear of your inbox becoming a sandbox escape room.
Key Points:
- Mozilla released a security advisory addressing vulnerabilities in Thunderbird 140.2.
- The flaws are high-impact but mainly pose a risk in browser-like contexts, not directly through email.
- A key vulnerability involved a sandbox escape due to an invalid pointer in the audio/video GMP component.
- The vulnerability was reported by someone named Oskar and was related to memory corruption in the GMP process.
- The update ensures Thunderbird remains a fortress of email security without turning your digital life into a thriller.
Already a member? Log in here