Information Disclosure Vulnerability in Discourse by Discourse
CVE-2026-33514

6MEDIUM

Key Information:

Vendor

Discourse
Status
Discourse
Vendor
CVE Published:
19 May 2026

What is CVE-2026-33514?

An information disclosure vulnerability exists in Discourse, allowing an authenticated user to access the names and structured content of form templates that are restricted to specific categories. This flaw affects versions prior to 2026.1.4, 2026.3.1, 2026.4.1, and 2026.5.0-latest.1, potentially exposing sensitive site configuration metadata. The issue has been addressed in the latest updates.

Affected Version(s)

discourse < 2026.1.4 < 2026.1.4

discourse >= 2026.3.0-latest, < 2026.3.1 < 2026.3.0-latest, 2026.3.1

discourse >= 2026.4.0-latest, < 2026.4.1 < 2026.4.0-latest, 2026.4.1

References

https://github.com/discourse/discourse/security/advisorie...
x_refsource_CONFIRM
https://github.com/discourse/discourse/commit/ae5c9570fb9...
x_refsource_MISC

CVSS V4

Score:
6
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.