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CVE-2026-44787
8.2 HIGH
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): High (H)
- Integrity (I): Low (L)
- Availability (A): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): Low (L)
- Modified Availability (MA): None (N)
Activity log
- Created suggestion
Discourse: Signup-time primary_group_id assignment grants whisperer access
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.
References
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https://github.com/discourse/discourse/security/advisories/GHSA-vmwq-jvxx-jwfx x_refsource_CONFIRM
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https://github.com/discourse/discourse/releases/tag/v2026.1.5 x_refsource_MISC
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https://github.com/discourse/discourse/releases/tag/v2026.4.2 x_refsource_MISC
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https://github.com/discourse/discourse/releases/tag/v2026.5.1 x_refsource_MISC
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https://github.com/discourse/discourse/releases/tag/v2026.6.0 x_refsource_MISC
Affected products
discourse
- ==>= 2026.5.0-latest, < 2026.5.1
- ==>= 2026.4.0-latest, < 2026.4.2
- ==>= 2026.1.0-latest, < 2026.1.5
Matching in nixpkgs
pkgs.discourse
Open source discussion platform
pkgs.discourseAllPlugins
Open source discussion platform
pkgs.discourse-mail-receiver
Helper program which receives incoming mail for Discourse
pkgs.python313Packages.pydiscourse
Python library for working with Discourse
pkgs.python314Packages.pydiscourse
Python library for working with Discourse
pkgs.grafanaPlugins.grafana-discourse-datasource
Allows users to search and view topics, posts, users, tags, categories, and reports on a given Discourse forum through Grafana
Package maintainers
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@talyz Kim Lindberger <kim.lindberger@gmail.com>
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@leona-ya Leona Maroni <nix@leona.is>
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@nagisa Simonas Kazlauskas <nixpkgs@kazlauskas.me>
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@Dettorer Paul Hervot <paul.hervot@dettorer.net>