{"id":"CVE-2026-44787","aliases":["BIT-discourse-2026-44787","GHSA-vmwq-jvxx-jwfx"],"url":"https://o3.security/vulnerability/CVE-2026-44787","summary":"Discourse: Signup-time primary_group_id assignment grants whisperer access","details":"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.","published":"2026-07-09T22:03:41.409Z","modified":"2026-08-12T03:51:44.339152320Z","cvss":{"score":8.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Bitnami","name":"discourse","fixedVersion":"2026.1.5"}],"fix":{"url":"https://github.com/discourse/discourse/commit/012796ac28c85b30aa233c5ef042fc66efff8126","label":"discourse/discourse@012796a"},"references":[{"type":"WEB","url":"https://github.com/discourse/discourse/releases/tag/v2026.1.5"},{"type":"WEB","url":"https://github.com/discourse/discourse/releases/tag/v2026.4.2"},{"type":"WEB","url":"https://github.com/discourse/discourse/releases/tag/v2026.5.1"},{"type":"WEB","url":"https://github.com/discourse/discourse/releases/tag/v2026.6.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44787.json"},{"type":"ADVISORY","url":"https://github.com/discourse/discourse/security/advisories/GHSA-vmwq-jvxx-jwfx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44787"},{"type":"FIX","url":"https://github.com/discourse/discourse/commit/012796ac28c85b30aa233c5ef042fc66efff8126"},{"type":"FIX","url":"https://github.com/discourse/discourse/commit/0f50a07a6ef4b33f3f826ce6d7bf6d7bd16912d8"},{"type":"FIX","url":"https://github.com/discourse/discourse/commit/5418e3027dba109e27a4796463686d61e190ac29"},{"type":"FIX","url":"https://github.com/discourse/discourse/commit/6fc7e6cf04422fc3f9d1c99134803071e983ff0a"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:44.339152320Z"}}