Vulnerability from bitnami_vulndb
Published
2026-07-15 15:56
Modified
2026-07-15 16:14
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.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "discourse",
        "purl": "pkg:bitnami/discourse"
      },
      "ranges": [
        {
          "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"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-44787"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "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.",
  "id": "BIT-discourse-2026-44787",
  "modified": "2026-07-15T16:14:00.031Z",
  "published": "2026-07-15T15:56:12.702Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/discourse/discourse/commit/012796ac28c85b30aa233c5ef042fc66efff8126"
    },
    {
      "type": "WEB",
      "url": "https://github.com/discourse/discourse/commit/0f50a07a6ef4b33f3f826ce6d7bf6d7bd16912d8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/discourse/discourse/commit/5418e3027dba109e27a4796463686d61e190ac29"
    },
    {
      "type": "WEB",
      "url": "https://github.com/discourse/discourse/commit/6fc7e6cf04422fc3f9d1c99134803071e983ff0a"
    },
    {
      "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": "WEB",
      "url": "https://github.com/discourse/discourse/security/advisories/GHSA-vmwq-jvxx-jwfx"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44787"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Discourse: Signup-time primary_group_id assignment grants whisperer access"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.