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CVE-2026-4274

Опубликовано: 26 мар. 2026
Источник: debian
EPSS Низкий

Описание

Mattermost versions 11.2.x <= 11.2.2, 10.11.x <= 10.11.10, 11.4.x <= 11.4.0, 11.3.x <= 11.3.1 fail to restrict team-level access when processing membership sync from a remote cluster, which allows a malicious remote cluster to grant a user access to an entire private team instead of only the shared channel via sending crafted membership sync messages that trigger team membership assignment. Mattermost Advisory ID: MMSA-2026-00574

Пакеты

ПакетСтатусВерсия исправленияРелизТип
mattermost-serveritppackage

EPSS

Процентиль: 8%
0.0003
Низкий

Связанные уязвимости

CVSS3: 5.4
nvd
15 дней назад

Mattermost versions 11.2.x <= 11.2.2, 10.11.x <= 10.11.10, 11.4.x <= 11.4.0, 11.3.x <= 11.3.1 fail to restrict team-level access when processing membership sync from a remote cluster, which allows a malicious remote cluster to grant a user access to an entire private team instead of only the shared channel via sending crafted membership sync messages that trigger team membership assignment. Mattermost Advisory ID: MMSA-2026-00574

CVSS3: 5.4
github
15 дней назад

Mattermost has an Incorrect Authorization issue

EPSS

Процентиль: 8%
0.0003
Низкий