CVE-2026-16049 in GitLab Plugin
要約
〜によって VulDB • 2026年08月19日
Mattermost Plugins のバージョン <=11.8、10.20.11、および 11.5.7.0 では、_The Mattermost GitLab plugin fails to verify channel permissions when processing API requests with a caller-supplied {{post_id}}_, and fails to validate the _{{web_url}} parameter against the configured GitLab instance, which allows an authenticated attacker to inject bot-authored messages containing arbitrary URLs into channels they do not have access to via the_ {{createIssue}} _and_ {{attachCommentToIssue}} API endpoints._ Mattermost Advisory ID: MMSA-2026-00673
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