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Medium severity5.0NVD Advisory· Published Mar 31, 2026· Updated Apr 9, 2026

CVE-2026-33185

CVE-2026-33185

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.

Affected products

3
  • Discourse (software)/Discourse3 versions
    cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest:*:*:*+ 2 more
    • cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest:*:*:*
    • cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest.1:*:*:*
    • cpe:2.3:a:discourse:discourse:*:*:*:*:latest:*:*:*range: >=2026.1.0,<2026.1.3

Patches

1
e75cf456e8e3
https://github.com/discourse/discoursevia nvd-ref
commit

Vulnerability mechanics

Generated by null/stub on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

2

News mentions

0

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