Sandbox escape in the DOM: Workers component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-x11 | Jun 23, 2026 | Jun 22, 2026 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade firefox | Jul 8, 2026 | Jul 8, 2026 |
| Amazon_linux_2023 | — | Upgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade firefox | Jul 8, 2026 | Jun 16, 2026 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Jun 21, 2026 | Jun 21, 2026 |
| Mfsa2026 57 | — | Upgrade to Mozilla Firefox version 152.0Upgrade to the latest version of Mozilla Firefox | Jun 16, 2026 | Jun 16, 2026 |
| Mfsa2026 58 | — | Upgrade to Mozilla Firefox ESR version 140.12Upgrade to the latest version of Mozilla Firefox | Jun 16, 2026 | Jun 16, 2026 |
| Mfsa2026 59 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 115.37 | Jun 16, 2026 | Jun 16, 2026 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 140.12 | Jun 21, 2026 | Jun 16, 2026 |
| Redhat_linux | — | Upgrade thunderbirdNo solution existsUpgrade thunderbird-debugsourceUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade firefox-x11Upgrade firefox-debugsourceUpgrade firefox-debuginfo | Jun 23, 2026 | Jun 16, 2026 |
| Rocky_linux | — | Upgrade firefox-x11Upgrade firefox-debugsourceUpgrade thunderbirdUpgrade thunderbird-debuginfoUpgrade firefoxUpgrade firefox-debuginfoUpgrade thunderbird-debugsource | Jun 29, 2026 | Jun 26, 2026 |
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