{"action":"Upgrade github.com/nats-io/nats-server/v2 to 2.11.15 or later.","affected":[{"fixed":"2.11.15","introduced":"0"},{"fixed":"2.12.6","introduced":"2.12.0-RC.1"}],"component":"github.com/nats-io/nats-server/v2","cve_ids":["CVE-2026-33222"],"ecosystem":"Go","epss":0.00318,"exploited":false,"fixed_versions":["2.11.15","2.12.6"],"ghsa_id":"GHSA-9983-vrx2-fg9c","id":"tcs_01M5KGGDB9W6JZKWEH1J44QVNX","modified_at":"2026-03-27T18:26:12.282997Z","published_at":"2026-03-26T20:33:05Z","references":["https://osv.dev/vulnerability/GO-2026-4832","https://github.com/nats-io/nats-server/security/advisories/GHSA-9983-vrx2-fg9c","https://advisories.nats.io/CVE/secnote-2026-12.txt"],"severity":{"label":"medium","score":4.9},"sources":[{"source":"osv","source_id":"GO-2026-4832#Go/github.com/nats-io/nats-server/v2","url":"https://osv.dev/vulnerability/GO-2026-4832"},{"source":"nvd","source_id":"CVE-2026-33222","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33222"}],"summary":"NATS JetStream has an authorization bypass through its Management API in github.com/nats-io/nats-server"}