CVE-2026-32099
Received Received - Intake
Information Disclosure via Onebox Preview in Discourse User Profiles

Publication date: 2026-03-19

Last updated on: 2026-03-24

Assigner: GitHub, Inc.

Description
Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, when a user has `hide_profile` enabled, their bio, location, and website were still exposed through the user onebox preview. An authenticated user could request a onebox for a hidden user's profile URL and receive their hidden profile fields (bio, location, website) in the response. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.
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Meta Information
Published
2026-03-19
Last Modified
2026-03-24
Generated
2026-06-16
AI Q&A
2026-03-20
EPSS Evaluated
2026-06-14
NVD
CVE-2026-32099
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
discourse discourse From 2026.1.0 (inc) to 2026.1.2 (exc)
discourse discourse From 2026.2.0 (inc) to 2026.2.1 (exc)
discourse discourse 2026.3.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
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Executive Summary

This vulnerability affects the Discourse open-source discussion platform. Before certain fixed versions, when a user enabled the 'hide_profile' setting to keep their bio, location, and website private, these fields were still exposed through the user onebox preview feature. An authenticated user could request a onebox preview of a hidden user's profile URL and receive the hidden profile information in the response, thus bypassing the privacy setting.

Impact Analysis

This vulnerability can lead to unintended disclosure of personal information such as bio, location, and website of users who intended to keep this information hidden. An authenticated user could access private profile details of other users, potentially compromising user privacy and trust in the platform.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate this vulnerability, you should upgrade your Discourse installation to one of the patched versions: 2026.3.0-latest.1, 2026.2.1, or 2026.1.2.

No known workarounds are available, so applying the update is the recommended immediate step.

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