CVE-2026-10085
- Source
- https://cve.org/CVERecord?id=CVE-2026-10085
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-10085.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-10085
- Downstream
- Published
- 2026-07-13T08:05:42.370Z
- Modified
- 2026-07-16T03:48:09.130795093Z
- Severity
-
- 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
- Summary
- Ordinary group/direct message member can enable group_constrained and remove all channel participants
- Details
-
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
- Database specific
{ "cna_assigner": "Mattermost", "unresolved_ranges": [ { "extracted_events": [ { "introduced": "11.7.0" }, { "last_affected": "11.7.2" }, { "introduced": "11.6.0" }, { "last_affected": "11.6.4" }, { "introduced": "10.11.0" }, { "last_affected": "10.11.19" } ], "source": "AFFECTED_FIELD" } ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/10xxx/CVE-2026-10085.json", "cwe_ids": [ "CWE-862" ] }- References
Affected packages
Git / github.com/mattermost/mattermost
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mattermost/mattermost
- Events
- Database specific
{ "cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "10.11.0" }, { "fixed": "10.11.20" }, { "introduced": "11.6.0" }, { "fixed": "11.6.5" }, { "introduced": "11.7.0" }, { "fixed": "11.7.3" } ], "source": "CPE_RANGE" }
Affected versions
@mattermost/client@10.*
@mattermost/client@10.11.0
@mattermost/client@11.*
@mattermost/client@11.7.0
@mattermost/shared@11.*
@mattermost/shared@11.7.0
@mattermost/types@10.*
@mattermost/types@10.11.0
@mattermost/types@11.*
@mattermost/types@11.7.0
mattermost-redux@10.*
mattermost-redux@10.11.0
mattermost-redux@11.*
mattermost-redux@11.7.0
v10.*
v10.11.0
v10.11.0-rc3
v10.11.1
v10.11.1-rc1
v10.11.10
v10.11.11
v10.11.11-rc1
v10.11.11-rc2
v10.11.12
v10.11.13
v10.11.13-rc1
v10.11.14
v10.11.14-rc1
v10.11.15
v10.11.15-rc1
v10.11.16
v10.11.17
v10.11.18
v10.11.19
v10.11.19-rc1
v10.11.2
v10.11.2-rc1
v10.11.2-rc2
v10.11.3
v10.11.4
v10.11.4-rc1
v10.11.4-rc2
v10.11.4-rc3
v10.11.5
v10.11.6
v10.11.7
v10.11.8
v10.11.9
v10.11.9-rc1
v11.*
v11.6.0
v11.6.1
v11.6.1-rc1
v11.6.2
v11.6.3
v11.6.4
v11.7.0
v11.7.1
v11.7.2