Mitigation bypass in the DOM: Security component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Weakness
The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Firefox | Mozilla | * | 115.32.0 (excluding) |
| Firefox | Mozilla | * | 147.0 (excluding) |
| Firefox | Mozilla | 128.0 (including) | 140.7.0 (excluding) |
| Thunderbird | Mozilla | * | 140.7.0 (excluding) |
| Thunderbird | Mozilla | * | 147.0 (excluding) |
| Red Hat Enterprise Linux 10 | RedHat | firefox-0:140.7.0-1.el10_1 | * |
| Red Hat Enterprise Linux 10 | RedHat | thunderbird-0:140.7.0-1.el10_1 | * |
| Red Hat Enterprise Linux 10.0 Extended Update Support | RedHat | firefox-0:140.7.0-1.el10_0 | * |
| Red Hat Enterprise Linux 10.0 Extended Update Support | RedHat | thunderbird-0:140.7.0-1.el10_0 | * |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | RedHat | firefox-0:140.7.0-1.el7_9 | * |
| Red Hat Enterprise Linux 8 | RedHat | firefox-0:140.7.0-1.el8_10 | * |
| Red Hat Enterprise Linux 8 | RedHat | thunderbird-0:140.7.0-1.el8_10 | * |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | thunderbird-0:140.7.0-1.el8_2 | * |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | firefox-0:140.7.0-1.el8_2 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | thunderbird-0:140.7.0-1.el8_4 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | firefox-0:140.7.0-1.el8_4 | * |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | RedHat | thunderbird-0:140.7.0-1.el8_4 | * |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | RedHat | firefox-0:140.7.0-1.el8_4 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | thunderbird-0:140.7.0-1.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | firefox-0:140.7.0-1.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | thunderbird-0:140.7.0-1.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | firefox-0:140.7.0-1.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | thunderbird-0:140.7.0-1.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | firefox-0:140.7.0-1.el8_6 | * |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Service | RedHat | thunderbird-0:140.7.0-1.el8_8 | * |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Service | RedHat | firefox-0:140.7.0-1.el8_8 | * |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | RedHat | thunderbird-0:140.7.0-1.el8_8 | * |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | RedHat | firefox-0:140.7.0-1.el8_8 | * |
| Red Hat Enterprise Linux 9 | RedHat | firefox-0:140.7.0-1.el9_7 | * |
| Red Hat Enterprise Linux 9 | RedHat | thunderbird-0:140.7.0-1.el9_7 | * |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | RedHat | thunderbird-0:140.7.0-1.el9_0 | * |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | RedHat | firefox-0:140.7.0-1.el9_0 | * |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | RedHat | thunderbird-0:140.7.0-1.el9_2 | * |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | RedHat | firefox-0:140.7.0-1.el9_2 | * |
| Red Hat Enterprise Linux 9.4 Extended Update Support | RedHat | thunderbird-0:140.7.0-1.el9_4 | * |
| Red Hat Enterprise Linux 9.4 Extended Update Support | RedHat | firefox-0:140.7.0-1.el9_4 | * |
| Red Hat Enterprise Linux 9.6 Extended Update Support | RedHat | thunderbird-0:140.7.0-2.el9_6 | * |
| Red Hat Enterprise Linux 9.6 Extended Update Support | RedHat | firefox-0:140.7.0-1.el9_6 | * |
| Mozjs102 | Ubuntu | esm-apps/noble | * |
| Mozjs102 | Ubuntu | jammy | * |
| Mozjs102 | Ubuntu | noble | * |
| Mozjs115 | Ubuntu | noble | * |
| Mozjs115 | Ubuntu | plucky | * |
| Mozjs52 | Ubuntu | esm-apps/focal | * |
| Mozjs52 | Ubuntu | esm-infra/bionic | * |
| Mozjs68 | Ubuntu | esm-infra/focal | * |
| Mozjs78 | Ubuntu | esm-apps/jammy | * |
| Mozjs78 | Ubuntu | jammy | * |
| Mozjs91 | Ubuntu | jammy | * |
| Thunderbird | Ubuntu | jammy | * |
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/1.html
- https://cwe.mitre.org/data/definitions/107.html
- https://cwe.mitre.org/data/definitions/127.html
- https://cwe.mitre.org/data/definitions/17.html
- https://cwe.mitre.org/data/definitions/20.html
- https://cwe.mitre.org/data/definitions/22.html
- https://cwe.mitre.org/data/definitions/237.html
- https://cwe.mitre.org/data/definitions/36.html
- https://cwe.mitre.org/data/definitions/477.html
- https://cwe.mitre.org/data/definitions/480.html
- https://cwe.mitre.org/data/definitions/51.html
- https://cwe.mitre.org/data/definitions/57.html
- https://cwe.mitre.org/data/definitions/59.html
- https://cwe.mitre.org/data/definitions/65.html
- https://cwe.mitre.org/data/definitions/668.html
- https://cwe.mitre.org/data/definitions/74.html
- https://cwe.mitre.org/data/definitions/87.html
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1999257
- https://www.mozilla.org/security/advisories/mfsa2026-01/
- https://www.mozilla.org/security/advisories/mfsa2026-02/
- https://www.mozilla.org/security/advisories/mfsa2026-03/
- https://www.mozilla.org/security/advisories/mfsa2026-04/
- https://www.mozilla.org/security/advisories/mfsa2026-05/