Описание
Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to bound memory allocation when processing DOC files which allows an authenticated attacker to cause server memory exhaustion and denial of service via uploading a specially crafted DOC file.. Mattermost Advisory ID: MMSA-2026-00581
A memory exhaustion flaw has been discovered in the Mattermost server. Affected versions fail to bound memory allocation when processing DOC files which allows an authenticated attacker to cause server memory exhaustion and denial of service via uploading a specially crafted DOC file.
Отчет
This vulnerability is rated as having a Moderate impact because triggering the resource exhaustion requires established user authentication and results only in an availability disruption rather than arbitrary code execution or confidentiality loss. Red Hat Enterprise Linux does not include or ship the Mattermost server platform, meaning core operating system environments remain unaffected under standard configurations. Any potential risk is confined to third-party installations or community-supported bridging components that interact with vulnerable server instances.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Дополнительная информация
Статус:
EPSS
4.3 Medium
CVSS3
Связанные уязвимости
Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to bound memory allocation when processing DOC files which allows an authenticated attacker to cause server memory exhaustion and denial of service via uploading a specially crafted DOC file.. Mattermost Advisory ID: MMSA-2026-00581
Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10. ...
Mattermost fails to bound memory allocation when processing DOC files
Уязвимость приложения для обмена мгновенными сообщениями Mattermost, связанная с неконтролируемым расходом ресурсов, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
4.3 Medium
CVSS3