When an email contains multiple attachments with external links via the X-Mozilla-External-Attachment-URL header, only the last link is shown when hovering over any attachment. Although the correct link is used on click, the misleading hover text could trick users into downloading content from untrusted sources. This vulnerability was fixed in Thunderbird 137.0.2 and Thunderbird 128.9.2.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbird | Apr 29, 2025 | Apr 15, 2025 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade thunderbird-debuginfo | May 30, 2025 | Apr 15, 2025 |
| Debian | — | Upgrade thunderbird | May 5, 2025 | Apr 15, 2025 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 128.9.2Upgrade to the latest version of Mozilla Thunderbird | Apr 16, 2025 | Apr 15, 2025 |
| Oracle_linux | — | Upgrade thunderbird | Apr 29, 2025 | Apr 15, 2025 |
| Redhat_linux | — | Upgrade thunderbirdUpgrade thunderbird-debugsourceNo solution existsUpgrade thunderbird-debuginfo | Apr 29, 2025 | Apr 15, 2025 |
| Rocky_linux | — | Upgrade thunderbirdUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfo | Jul 31, 2025 | Jul 29, 2025 |
| Suse | — | Upgrade MozillaThunderbird-translations-commonUpgrade MozillaThunderbirdUpgrade MozillaThunderbird-translations-other | Apr 25, 2025 | Apr 15, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jul 23, 2025 | Apr 15, 2025 |
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