{"id":"CVE-2026-44787","aliases":["BIT-discourse-2026-44787","EUVD-2026-42735","GHSA-vmwq-jvxx-jwfx"],"status":"published","title":"Discourse: Signup-time primary_group_id assignment grants whisperer access","description":"Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, the signup flow could allow newly registered users to set primary_group_id and gain whisper-group privileges without legitimate group membership on sites with whispers_allowed_groups configured. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00669,"percentile":0.52298,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-269"],"published":"2026-07-09T22:03:41Z","modified":"2026-11-11T02:48:46Z","fixes":[{"ecosystem":"Bitnami","package":"discourse","fixed_in":["2026.1.5","2026.4.2","2026.5.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"discourse","ranges":[{"type":"SEMVER","events":[{"introduced":"2026.1.0"},{"fixed":"2026.1.5"},{"introduced":"2026.4.0"},{"fixed":"2026.4.2"},{"introduced":"2026.5.0"},{"fixed":"2026.5.1"}]}]}],"products":[{"vendor":"discourse","product":"discourse"}],"references":[{"url":"https://github.com/discourse/discourse/security/advisories/GHSA-vmwq-jvxx-jwfx","tags":["x_refsource_CONFIRM","Vendor Advisory","Mitigation","advisory"]},{"url":"https://github.com/discourse/discourse/commit/012796ac28c85b30aa233c5ef042fc66efff8126","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/discourse/discourse/commit/0f50a07a6ef4b33f3f826ce6d7bf6d7bd16912d8","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/discourse/discourse/commit/5418e3027dba109e27a4796463686d61e190ac29","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/discourse/discourse/commit/6fc7e6cf04422fc3f9d1c99134803071e983ff0a","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/discourse/discourse/releases/tag/v2026.1.5","tags":["x_refsource_MISC","Release Notes","article","web"]},{"url":"https://github.com/discourse/discourse/releases/tag/v2026.4.2","tags":["x_refsource_MISC","Release Notes","article","web"]},{"url":"https://github.com/discourse/discourse/releases/tag/v2026.5.1","tags":["x_refsource_MISC","Release Notes","article","web"]},{"url":"https://github.com/discourse/discourse/releases/tag/v2026.6.0","tags":["x_refsource_MISC","Release Notes","article","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44787","tags":["web","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44787.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-44787","title":"Discourse: Signup-time primary_group_id assignment grants whisperer access","description":"Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, the signup flow could allow newly registered users to set primary_group_id and gain whisper-group privileges without legitimate group membership on sites with whispers_allowed_groups configured. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.","status":"published","published":"2026-07-09T22:03:41.409Z","modified":"2026-07-10T20:59:36.502Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T13:43:00.288193Z"}],"euvd":[{"id":"EUVD-2026-42735","description":"Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, the signup flow could allow newly registered users to set primary_group_id and gain whisper-group privileges without legitimate group membership on sites with whispers_allowed_groups configured. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.","status":"published","published":"2026-07-09T22:03:41Z","modified":"2026-07-10T20:59:36Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"high"}],"updated_at":"2026-11-02T18:20:02.308684Z"}],"nvd":[{"id":"CVE-2026-44787","description":"Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, the signup flow could allow newly registered users to set primary_group_id and gain whisper-group privileges without legitimate group membership on sites with whispers_allowed_groups configured. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.","status":"published","published":"2026-07-09T22:17:04.607Z","modified":"2026-07-14T20:44:55.057Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:12:28.4135Z"}],"osv":[{"id":"CVE-2026-44787","title":"Discourse: Signup-time primary_group_id assignment grants whisperer access","description":"Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, the signup flow could allow newly registered users to set primary_group_id and gain whisper-group privileges without legitimate group membership on sites with whispers_allowed_groups configured. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.","status":"published","published":"2026-07-09T22:03:41.409Z","modified":"2026-11-11T10:30:59.598636509Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-11T03:22:00.901153Z"},{"id":"BIT-discourse-2026-44787","title":"Discourse: Signup-time primary_group_id assignment grants whisperer access","description":"Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, the signup flow could allow newly registered users to set primary_group_id and gain whisper-group privileges without legitimate group membership on sites with whispers_allowed_groups configured. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.","status":"published","published":"2026-07-15T15:56:12.702Z","modified":"2026-09-08T08:46:22.888947397Z","updated_at":"2026-11-02T15:28:29.152062Z"}]}}