A maliciously constructed mail header could lead to multiple fields being parsed as one, or potential memory safety violations. This vulnerability was fixed in Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade thunderbird | Sep 21, 2026 | Sep 15, 2026 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 153.3Upgrade to the latest version of Mozilla Thunderbird | Sep 15, 2026 | Sep 15, 2026 |
| Redhat_linux | — | No solution exists | Sep 18, 2026 | Sep 15, 2026 |
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