CVE-2026-4286Published
Playbooks Plugin fails to validate team transfers, allowing unauthorized removal of member access via playbook update
Explicit identifiers and source references
These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.
CVE-2026-4286 · Microsoft / collected KEV context
cve-program · CVE-2026-4286
euvd · EUVD-2026-30750
nvd · CVE-2026-4286
osv · GHSA-gvg4-jhmr-6j23
- https://nvd.nist.gov/vuln/detail/CVE-2026-4286
- https://github.com/mattermost/mattermost-plugin-playbooks/commit/e1d6ec2c94e695fb74e0c0c11c0d45e028bb96f3
- https://github.com/mattermost/mattermost
- https://mattermost.com/security-updates
osv · GO-2026-5404
Related operational evidence
Explicit CVE identifiersNo related operational record is retained in the current change model.