{"action":"Upgrade github.com/mattermost/mattermost-server to 10.11.10+incompatible or later.","affected":[{"fixed":"10.11.10+incompatible","introduced":"10.11.0+incompatible"},{"fixed":"11.1.3+incompatible","introduced":"11.1.0+incompatible"},{"fixed":"11.2.2+incompatible","introduced":"11.2.0+incompatible"}],"component":"github.com/mattermost/mattermost-server","cve_ids":["CVE-2026-22892"],"ecosystem":"Go","epss":0.00269,"exploited":false,"fixed_versions":["10.11.10+incompatible","11.1.3+incompatible","11.2.2+incompatible"],"ghsa_id":"GHSA-9pj7-jh2r-87g8","id":"tcs_01M5KGE31ANZ8R68M0AAWTA94N","modified_at":"2026-02-23T19:26:05.244497Z","published_at":"2026-02-23T18:23:12Z","references":["https://osv.dev/vulnerability/GO-2026-4496","https://github.com/advisories/GHSA-9pj7-jh2r-87g8","https://nvd.nist.gov/vuln/detail/CVE-2026-22892","https://mattermost.com/security-updates"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"GO-2026-4496","url":"https://osv.dev/vulnerability/GO-2026-4496"},{"source":"nvd","source_id":"CVE-2026-22892","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22892"}],"summary":"Mattermost doesn't validate user permissions when creating Jira issues from Mattermost posts in github.com/mattermost/mattermost-server"}