{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "2026.1.0-latest"
              },
              {
                "fixed": "2026.1.3"
              }
            ]
          },
          "events": [
            {
              "introduced": "322d3c0ac6a8f133b3f82875e9dbbe310f638c1b"
            },
            {
              "fixed": "b3f024ce9587e678216892cbd967201b2450e197"
            }
          ],
          "repo": "https://github.com/discourse/discourse",
          "type": "GIT"
        },
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "2026.2.0-latest"
              },
              {
                "fixed": "2026.2.2"
              }
            ]
          },
          "events": [
            {
              "introduced": "f7cec86997edc21d6074ceb7666f7e2e6e1b1fdf"
            },
            {
              "fixed": "4431801e7b5af883edb430643fdace7608ffb6fb"
            }
          ],
          "repo": "https://github.com/discourse/discourse",
          "type": "GIT"
        },
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "2026.3.0-latest"
              },
              {
                "fixed": "2026.3.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "896e810e1b296478bba91559a8fc89a9926f11fe"
            },
            {
              "fixed": "896e810e1b296478bba91559a8fc89a9926f11fe"
            }
          ],
          "repo": "https://github.com/discourse/discourse",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-pc8p-w2m7-hgf3"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-200"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32618.json"
  },
  "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.",
  "id": "CVE-2026-32618",
  "modified": "2026-04-01T23:09:09.701503474Z",
  "published": "2026-03-31T17:40:41.484Z",
  "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"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Discourse: Unauthorized channel membership inference via excluded_memberships_channel_id"
}