CVE-2026-33514
Published:May 19, 2026
Updated:June 11, 2026
Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, an authenticated user on a Discourse instance with the form templates feature enabled can read the name and structured content of form templates that are intended exclusively for categories they are not authorized to access. Impact is limited to disclosure of site configuration metadata. This issue has been fixed in versions 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1.
Affected Packages
https://github.com/discourse/discourse.git (GITHUB):
Affected version(s) >=v2026.1.0 <v2026.1.4Fix Suggestion:
Update to version v2026.1.4https://github.com/discourse/discourse.git (GITHUB):
Affected version(s) =v2026.4.0 <v2026.4.1Fix Suggestion:
Update to version v2026.4.1https://github.com/discourse/discourse.git (GITHUB):
Affected version(s) =v2026.5.0-latest <v2026.5.0-latest.1Fix Suggestion:
Update to version v2026.5.0-latest.1https://github.com/discourse/discourse.git (GITHUB):
Affected version(s) =v2026.3.0 <v2026.3.1Fix Suggestion:
Update to version v2026.3.1Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Missing Authorization
EPSS
Base Score:
0.04