{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"github.com/mattermost/mattermost-server/v5","cve_ids":["CVE-2026-8823"],"ecosystem":"Go","epss":0.00318,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-xmfh-3ccg-c9fx","id":"tcs_01M5KGVABSAFF3PCQBH2KZJVSR","modified_at":"2026-10-01T20:45:12.227552731Z","published_at":"2026-10-01T20:23:38Z","references":["https://osv.dev/vulnerability/GO-2026-6547","https://github.com/advisories/GHSA-xmfh-3ccg-c9fx","https://nvd.nist.gov/vuln/detail/CVE-2026-8823","https://docs.mattermost.com/security-guide/security-updates","https://github.com/mattermost/mattermost/commit/7972fc53f5c0b0175879a9737308a87b42db1f0b","https://github.com/mattermost/mattermost/commit/9bd77d3fc4d2af3f7f0259a205174e76a1a276e1","https://github.com/mattermost/mattermost/commit/c9bf3609fb9a3e5c2de94c50742c9b91fd723e3d","https://github.com/mattermost/mattermost/commit/d9a55e394cd5bc15edb49e9606bec8fec03ac4c6","https://github.com/mattermost/mattermost/pull/36487","https://github.com/mattermost/mattermost/releases/tag/v10.11.18","https://github.com/mattermost/mattermost/releases/tag/v11.7.1"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"GO-2026-6547#Go/github.com/mattermost/mattermost-server/v5","url":"https://osv.dev/vulnerability/GO-2026-6547"}],"summary":"Mattermost has an Incorrect Authorization issue in github.com/mattermost/mattermost-server"}