CVE-2026-74956

Опубликовано: 18 авг. 2026

Источник: nvd

CVSS3: 9.1

EPSS Низкий

Описание

Same-origin policy bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

Ссылки

https://bugzilla.mozilla.org/show_bug.cgi?id=2032406
Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-74/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-77/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-78/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-80/
Vendor Advisory

Уязвимые конфигурации

Конфигурация 1

Одно из

cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*

Версия до 153.1.0 (исключая)

cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*

Версия до 154.0.0 (исключая)

cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*

Версия до 153.1.0 (исключая)

cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*

Версия до 154.0 (исключая)

EPSS

Процентиль: 20%

0.00283

Низкий

9.1 Critical

CVSS3

Дефекты

CWE-843

Связанные уязвимости

CVE-2026-74956

CVSS3: 9.1

ubuntu

9 дней назад

(Same-origin policy bypass in the DOM: Service Workers component. This ...)

CVE-2026-74956

CVSS3: 6.1

redhat

10 дней назад

Same-origin policy bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

CVE-2026-74956

CVSS3: 9.1

debian

10 дней назад

Same-origin policy bypass in the DOM: Service Workers component. This ...

GHSA-q7p7-m6qg-cwfw

CVSS3: 9.1

github

9 дней назад

Same-origin policy bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 154 and Firefox ESR 153.1.

SUSE-SU-2026:3658-1

suse-cvrf

7 дней назад

Security update for MozillaFirefox

EPSS

Процентиль: 20%

0.00283

Низкий

9.1 Critical

CVSS3

Дефекты

CWE-843