{"id":"CVE-2026-32618","summary":"Discourse: Unauthorized channel membership inference via excluded_memberships_channel_id","details":"Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, there is possible channel membership inference from chat user search without authorization. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.","aliases":["BIT-discourse-2026-32618","GHSA-pc8p-w2m7-hgf3"],"modified":"2026-04-10T05:42:23.822876Z","published":"2026-03-31T17:40:41.484Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32618.json","cwe_ids":["CWE-200"],"cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32618.json"},{"type":"FIX","url":"https://github.com/discourse/discourse/commit/81fd89e744058e509412158e5e6ac90c856ade64"},{"type":"ADVISORY","url":"https://github.com/discourse/discourse/security/advisories/GHSA-pc8p-w2m7-hgf3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32618"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/discourse/discourse","events":[{"introduced":"322d3c0ac6a8f133b3f82875e9dbbe310f638c1b"},{"fixed":"b3f024ce9587e678216892cbd967201b2450e197"}],"database_specific":{"versions":[{"introduced":"2026.1.0-latest"},{"fixed":"2026.1.3"}]}},{"type":"GIT","repo":"https://github.com/discourse/discourse","events":[{"introduced":"f7cec86997edc21d6074ceb7666f7e2e6e1b1fdf"},{"fixed":"4431801e7b5af883edb430643fdace7608ffb6fb"}],"database_specific":{"versions":[{"introduced":"2026.2.0-latest"},{"fixed":"2026.2.2"}]}},{"type":"GIT","repo":"https://github.com/discourse/discourse","events":[{"introduced":"896e810e1b296478bba91559a8fc89a9926f11fe"},{"fixed":"896e810e1b296478bba91559a8fc89a9926f11fe"}],"database_specific":{"versions":[{"introduced":"2026.3.0-latest"},{"fixed":"2026.3.0"}]}}],"versions":["esr","stable","v2026.1.0","v2026.1.0-latest","v2026.1.1","v2026.1.2","v2026.2.0","v2026.2.0-latest","v2026.2.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32618.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}