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Discourse membership requests lack character limit

Type: advisorySources: OSV

Discourse is an open-source discussion platform. Prior to version 3.0.1 on the `stable` branch and 3.1.0.beta2 on the `beta` and `tests-passed` branches, when submitting a membership request, there is no character limit for the reason provided with the request. This could potentially allow a user to flood the database with a large amount of data. However it is unlikely this could be used as part of a DoS attack, as the paths reading back the reasons are only available to administrators. Starting in version 3.0.1 on the `stable` branch and 3.1.0.beta2 on the `beta` and `tests-passed` branches, a limit of 280 characters has been introduced for membership requests.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2023-23616
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 18:08 UTC · Revision 1

Source evidence

Discourse membership requests lack character limit

core-osv · Original source

Published 27 Jan 2023, 00:00 UTC

Discourse is an open-source discussion platform. Prior to version 3.0.1 on the `stable` branch and 3.1.0.beta2 on the `beta` and `tests-passed` branches, when submitting a membership request, there is no character limit for the reason provided with the request. This could potentially allow a user to flood the database with a large amount of data. However it is unlikely this could be used as part of a DoS attack, as the paths reading back the reasons are only available to administrators. Starting in version 3.0.1 on the `stable` branch and 3.1.0.beta2 on the `beta` and `tests-passed` branches, a limit of 280 characters has been introduced for membership requests.

osv:CVE-2023-23616
Complete source record
{
  "id": "f39868a63f84b189411ee035ca5359a420bd88038c08aa5522024a5e6f062ac8",
  "url": "https://osv.dev/vulnerability/CVE-2023-23616",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Discourse membership requests lack character limit",
    "summary": "Discourse is an open-source discussion platform. Prior to version 3.0.1 on the `stable` branch and 3.1.0.beta2 on the `beta` and `tests-passed` branches, when submitting a membership request, there is no character limit for the reason provided with the request. This could potentially allow a user to flood the database with a large amount of data. However it is unlikely this could be used as part of a DoS attack, as the paths reading back the reasons are only available to administrators. Starting in version 3.0.1 on the `stable` branch and 3.1.0.beta2 on the `beta` and `tests-passed` branches, a limit of 280 characters has been introduced for membership requests.",
    "evidence": "osv:CVE-2023-23616",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2023-23616",
      "aliases": [
        "BIT-discourse-2023-23616",
        "CVE-2023-23616",
        "GHSA-6xff-p329-9pgf"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/discourse/discourse",
              "type": "GIT",
              "events": [
                {
                  "introduced": "17daf077e2f11def391859f83d294bb71760b1cf"
                },
                {
                  "fixed": "d5745d34c20c31a221039d8913f33064433003ea"
                },
                {
                  "fixed": "3e0cc4a5d9ef44ad902f6985d046ebb32f0a14ee"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "3.1.0.beta1"
                      },
                      {
                        "last_affected": "3.1.0.beta1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "3.0.1"
                      },
                      {
                        "last_affected": "3.0.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d5745d34c20c31a221039d8913f33064433003ea"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "3e0cc4a5d9ef44ad902f6985d046ebb32f0a14ee"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
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            "3.0.0-beta15",
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            "3.0.1",
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            "3.1.0.beta1",
            "v3.1.0.beta1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-23616.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:22.131859285Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/23xxx/CVE-2023-23616.json",
        "https://github.com/discourse/discourse/security/advisories/GHSA-6xff-p329-9pgf",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-23616",
        "https://github.com/discourse/discourse/commit/3e0cc4a5d9ef44ad902f6985d046ebb32f0a14ee",
        "https://github.com/discourse/discourse/commit/d5745d34c20c31a221039d8913f33064433003ea",
        "https://github.com/discourse/discourse/pull/19993"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-400"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/23xxx/CVE-2023-23616.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-23616",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 488111,
  "published_at": "2023-01-27T00:00:00+00:00"
}