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VULNERABILITIES

CVE-2026-33185 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/discourse/discourse/commit/e75cf456e8e318290c569bd6e8fa0f2586ffc530 [email protected]Patch
https://github.com/discourse/discourse/security/advisories/GHSA-5976-77mj-m4h3 [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-918Server-Side Request Forgery (SSRF)[email protected]

Affected Products

ProductVersions
discourse discourse
>= 2026.1.0, < 2026.1.3
>= 2026.2.0, < 2026.2.2
2026.3.0

CPE

  • cpe:2.3:a:discourse:discourse:*:*:*:*:latest:*:*:*
  • cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest:*:*:*
  • cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest.1:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-33185
NVD Published Date:
Mar 31, 2026
NVD Last Modified:
Jul 24, 2026
Source:
[email protected]
CVE-2026-33185 Details - Not Deferred