Discourse is an open-source discussion platform.

Code

The project this record applies to. Exploit listings stay in References.

• Repository · github.com

Timeline

Detection, updates, and resolution for this record.

1. Mar 31, 2026 · NIST NVD

   Detected

   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 n

2. Jul 24, 2026 · NIST NVD

   Updated

   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 n

Affected

• cpe discourse/discourseversion unspecified
• cpe discourse/discourse2026.3.0

Sources

• CVE.orgVulnerability recordCVE-2026-33185

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-33185

  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

  nvd.nist.gov

References

• Patch · github.com
• Vendor Advisory · github.com