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Security Vulnerabilities fixed in Thunderbird 155 — Mozilla

🗓️ 01 Sep 2026 00:00:00Reported by Mozilla FoundationType 
mozilla
 mozilla
🔗 www.mozilla.org👁 10 Views

Thunderbird 155 fixes IMAP use-after-free, header over-read, and unescaped regex in hostnames.

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01 Sep 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.19.6
EPSS0.00323
SSVC
10