Mozilla Thunderbird (rm) 147.0.1
Mozilla Thunderbird (rm) 147.0.1, released January 28, 2026, fixes 1 CVE in Mozilla Thunderbird (rm). None of them is reported as exploited. Patch Radar priority: Routine. The latest Mozilla Thunderbird (rm) is 159.0, which also fixes every one of these CVEs.
Superseded. The latest Mozilla Thunderbird (rm) is 159.0, which also fixes every CVE on this page. Install that instead.
Applies to
| Product | Version |
|---|---|
| Mozilla Thunderbird (rm) | 147.0.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Routine | CVE-2026-0818 | CSS-based exfiltration of the content from partially encrypted emails when allowing remote content | 4.3 | 0.0018 | None reported |
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