CVE-2026-0998
- Source
- https://cve.org/CVERecord?id=CVE-2026-0998
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-0998.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-0998
- Aliases
- Downstream
- Related
- Published
- 2026-02-16T09:54:24.732Z
- Modified
- 2026-07-15T01:49:04.365541465Z
- Severity
-
- 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
- Summary
- Mattermost Zoom Plugin allows unauthorized meeting creation and post modification via insufficient API access controls
- Details
-
Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 and Mattermost Plugin Zoom versions <=1.11.0 fail to validate user identity and post ownership in the {{/api/v1/askPMI}} endpoint which allows unauthorized users to start Zoom meetings as any user and overwrite arbitrary posts via direct API calls with manipulated user IDs and post data.. Mattermost Advisory ID: MMSA-2025-00534
- Database specific
{ "cna_assigner": "Mattermost", "unresolved_ranges": [ { "extracted_events": [ { "introduced": "11.1.0" }, { "last_affected": "11.1.2" }, { "introduced": "10.11.0" }, { "last_affected": "10.11.9" }, { "introduced": "11.2.0" }, { "last_affected": "11.2.1" } ], "source": "AFFECTED_FIELD" } ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/0xxx/CVE-2026-0998.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": "10.11.10" }, { "introduced": "11.1.0" }, { "fixed": "11.1.3" }, { "introduced": "11.2.0" }, { "fixed": "11.2.2" } ], "source": "CPE_RANGE" }
Affected versions
@mattermost/client@10.*
@mattermost/client@10.11.0
@mattermost/client@11.*
@mattermost/client@11.1.0
@mattermost/types@10.*
@mattermost/types@10.11.0
@mattermost/types@11.*
@mattermost/types@11.1.0
mattermost-redux@10.*
mattermost-redux@10.11.0
mattermost-redux@11.*
mattermost-redux@11.1.0
v10.*
v10.11.0
v10.11.0-rc3
v10.11.1
v10.11.1-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.*
v11.1.0
v11.1.0-rc4
v11.1.1
v11.1.1-rc1
v11.1.1-rc2
v11.1.2
v11.1.2-rc1
v11.2.0
v11.2.1
v11.2.1-rc1
Git / github.com/mattermost/mattermost-plugin-zoom
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mattermost/mattermost-plugin-zoom
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affected
- Database specific
{ "cpe": "cpe:2.3:a:mattermost:zoom:*:*:*:*:*:mattermost:*:*", "extracted_events": [ { "introduced": "0" }, { "last_affected": "1.11.0" } ], "source": "CPE_RANGE" }
Affected versions
v0.*
v0.1
v0.1.1
v0.1.2
v0.1.3
v0.1.4
v0.1.5
v0.1.6
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.1.0
v1.1.1
v1.1.2
v1.10.0
v1.10.0-rc1
v1.10.0-rc2
v1.11.0
v1.11.0-rc1
v1.2.0
v1.3.0
v1.3.1
v1.4.0
v1.4.1
v1.5.0
v1.5.1
v1.7.0
v1.7.0-rc2
v1.7.1-rc1
v1.8.0
v1.8.0-rc1
v1.9.0
v1.9.0-rc1
v1.9.0-rc2