Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-28218 Details

Description

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, fail-open access control in Data Explorer plugin allows any authenticated user to execute SQL queries that have no explicit group assignments, including built-in system queries. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. As a workaround, either explicitly set group permissions on each Data Explorer query that doesn't have permissions, or disable discourse-data-explorer plugin.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/discourse/discourse/security/advisories/GHSA-jxrc-72mr-mfh5 [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-284Improper Access Control[email protected]

Affected Products

ProductVersions
discourse discourse
< 2025.12.2
>= 2026.1.0, < 2026.1.1
2026.2.0

CPE

  • cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*
  • cpe:2.3:a:discourse:discourse:2026.2.0:*:*:*:latest:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-28218
NVD Published Date:
Feb 26, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2026-28218 Details - Not Deferred