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CVE-2026-10085

—
CVSS 3.1
5.4 medium
EPSS
<1%p21
Published
()
Modified
Description

Mattermost versions 11.7.x <= 11.7.2, 11.6.x <= 11.6.4, 10.11.x <= 10.11.19 fail to restrict the group_constrained channel flag to public and private channels that support group synchronization, which allows an ordinary group or direct message member to remove all participants from the conversation via the channel patch API.. Mattermost Advisory ID: MMSA-2026-00688

Vendors
mattermost
Products
mattermost server
Weakness
CWE-862
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
NVD CVE.org GitHub PoCs EPSS (0.3%)

In the news

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