Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.
CVSS Details
- CVSS 3.1 Base Score: 9.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefox-x11Upgrade firefox | Jun 23, 2026 | Jun 22, 2026 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade firefox | Jul 8, 2026 | Jul 8, 2026 |
| Amazon_linux_2023 | — | Upgrade firefoxUpgrade firefox-debuginfoUpgrade firefox-debugsource | Jul 8, 2026 | Jun 16, 2026 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Jun 21, 2026 | Jun 21, 2026 |
| Mfsa2026 57 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 152.0 | Jun 16, 2026 | Jun 16, 2026 |
| Mfsa2026 58 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 140.12 | Jun 16, 2026 | Jun 16, 2026 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 140.12Upgrade to the latest version of Mozilla Thunderbird | Jun 21, 2026 | Jun 16, 2026 |
| Redhat_linux | — | Upgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade thunderbird-debugsourceUpgrade firefox-x11No solution existsUpgrade thunderbirdUpgrade firefox | Jun 23, 2026 | Jun 16, 2026 |
| Rocky_linux | — | Upgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade thunderbird-debuginfoUpgrade thunderbird-debugsourceUpgrade firefoxUpgrade thunderbirdUpgrade firefox-x11 | Jun 29, 2026 | Jun 26, 2026 |
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