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Medium severity5.4NVD Advisory· Published Jul 13, 2026· Updated Jul 14, 2026

CVE-2026-10085

CVE-2026-10085

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

Affected products

2
  • Mattermost/Mattermostllm-fuzzy2 versions
    <=11.7.2, <=11.6.4, <=10.11.19+ 1 more
    • (no CPE)range: <=11.7.2, <=11.6.4, <=10.11.19
    • cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*range: >=10.11.0,<10.11.20

Patches

Vulnerability mechanics

References

1

News mentions

0

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