PT-2026-26377 · Discourse · Discourse

Davidtaylorhq

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CVE-2026-27936

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Published

2026-03-19

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Updated

2026-03-27

CVSS v4.0

6.9

Medium

VectorAV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2026.3.0-latest.1 Discourse versions prior to 2026.2.1 Discourse versions prior to 2026.1.2
Description Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, a restriction bypass allows restricted post action counts to be disclosed to non-privileged users through a carefully crafted request.
Recommendations Update to Discourse version 2026.3.0-latest.1 or later. Update to Discourse version 2026.2.1 or later. Update to Discourse version 2026.1.2 or later.

Exploit

Fix

DoS

Incorrect Authorization

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dbugs@ptsecurity.com

Weakness Enumeration

CWE-863

Related Identifiers

BIT-DISCOURSE-2026-27936
CVE-2026-27936
GHSA-V9R3-P863-6F25

Affected Products

Discourse