CVE-2026-33185
MEDIUM WAF: Medium
CVSS 5.0
Published: 2026-03-31
CWE-918
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, the group email settings test endpoint could be used to make the server initiate outbound connections to arbitrary hosts and ports. This could allow probing of internal network infrastructure. The endpoint was accessible to non-staff group owners. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.
WAF Coverage Analysis
Server-Side Request Forgery (SSRF)
Medium WAF Coverage
OWASP: A10:2021 SSRF
934xxx - Node.js / Generic Injection
Affected Software
| Vendor | Product | Version |
|---|---|---|
| discourse | discourse | 2026.1.0 - 2026.1.3 |
| discourse | discourse | 2026.2.0 - 2026.2.2 |
| discourse | discourse | 2026.3.0 |
| discourse | discourse | 2026.3.0 |
References
- github.com (Patch)
- github.com (Vendor Advisory)