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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-59829 Detail

Description

Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.1, on sites with category group moderation enabled, the review queue could include an excerpt (and permalink) of the private message attached to a flag, even when the reviewing category moderator was not a participant in that message. These notify_moderators flag messages are addressed only to moderators and, for core flags, to a category's moderation groups as they existed when the flag was raised, so a category group moderator could read flag-discussion content they were not authorized to see. This affects official plugins that create such messages and core flags raised before a moderator's group was granted moderation of the category. Only the confidentiality of a limited excerpt of these flag-related private messages is affected; no content can be modified or deleted. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.1.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/discourse/discourse/commit/4df0e54f59361c78606b578ad12a2c39b4dd9f59 GitHub, Inc.
https://github.com/discourse/discourse/commit/58e45dc7c92d19d5294c73fbcd3833c73dc51754 GitHub, Inc.
https://github.com/discourse/discourse/commit/74c8522a197658c69b0adefa182f601ce85dcefa GitHub, Inc.
https://github.com/discourse/discourse/commit/e56bd3ec58ae387946220821d1ce214eed02d1b9 GitHub, Inc.
https://github.com/discourse/discourse/pull/41527 GitHub, Inc.
https://github.com/discourse/discourse/security/advisories/GHSA-wmc6-pmxp-xw5w GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-862 Missing Authorization GitHub, Inc.  

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-59829
NVD Published Date:
08/17/2026
NVD Last Modified:
08/17/2026
Source:
GitHub, Inc.