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Discourse CVE-2026-33394

LOW
Information Exposure (CWE-200)
2026-03-19 security-advisories@github.com
Information Disclosure Discourse
2.7
CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY
2.7 LOW
AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 19, 2026 - 22:30 vuln.today
CVE Published
Mar 19, 2026 - 22:16 nvd
LOW 2.7

DescriptionGitHub Advisory

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, the Post Edits admin report (/admin/reports/post_edits) leaked the first 40 characters of raw post content from private messages and secure categories to moderators who shouldn't have access. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

AnalysisAI

Discourse is an open-source discussion platform.

Technical ContextAI

Information disclosure occurs when an application inadvertently reveals sensitive data to unauthorized actors through error messages, logs, or improper access controls. This vulnerability is classified as Information Exposure (CWE-200).

RemediationAI

Implement proper access controls. Sanitize error messages in production. Review logging practices to avoid capturing sensitive data.

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CVE-2026-33394 vulnerability details – vuln.today
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