EUVD-2026-17574

| CVE-2026-33415 MEDIUM
2026-03-31 GitHub_M
5.1
CVSS 4.0
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CVSS Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
X

Lifecycle Timeline

3
Analysis Generated
Mar 31, 2026 - 18:16 vuln.today
EUVD ID Assigned
Mar 31, 2026 - 18:16 euvd
EUVD-2026-17574
CVE Published
Mar 31, 2026 - 17:42 nvd
MEDIUM 5.1

Tags

Authentication Bypass

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, an authenticated moderator-level user could retrieve post content, topic titles, and usernames from categories they were not authorized to view. Insufficient access controls on a sentiment analytics endpoint allowed category permission boundaries to be bypassed. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.

Analysis

Discourse versions 2026.1.0-2026.1.2, 2026.2.0-2026.2.1, and 2026.3.0-beta allow authenticated moderators to bypass category permission controls and retrieve post content, topic titles, and usernames from categories they lack authorization to access via a sentiment analytics endpoint. Patches are available (2026.1.3, 2026.2.2, 2026.3.0); no public exploit code or active exploitation has been identified.

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Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +26
POC: 0

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EUVD-2026-17574 vulnerability details – vuln.today
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