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CVE Vulnerability Details :

CVE-2026-27021

PUBLISHED

More Info Official Page

Assigner-GitHub_M

Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa

Published At-26 Feb, 2026 | 19:50

Updated At-26 Feb, 2026 | 19:50

▼CVE Numbering Authority (CNA)

Discourse: Poll voters endpoint lacked post visibility checks

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, the voters endpoint in the poll plugin lacked post visibility checks which allowed unauthorized access to voters details of polls in any post. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.

Affected Products

Vendor

Civilized Discourse Construction Kit, Inc.

Product

discourse

Versions

Affected

< 2025.12.2
>= 2026.1.0-latest, < 2026.1.1
>= 2026.2.0-latest, < 2026.2.0

Problem Types

Type	CWE ID	Description
CWE	CWE-862	CWE-862: Missing Authorization

Type: CWE

CWE ID: CWE-862

Description: CWE-862: Missing Authorization

Metrics

Version	Base score	Base severity	Vector
4.0	6.9	MEDIUM	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Version: 4.0

Base score: 6.9

Base severity: MEDIUM

Vector:

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

Hyperlink	Resource
https://github.com/discourse/discourse/security/advisories/GHSA-f5m5-9hpw-7c2g	x_refsource_CONFIRM

Hyperlink: https://github.com/discourse/discourse/security/advisories/GHSA-f5m5-9hpw-7c2g

Resource:

x_refsource_CONFIRM

Affected Products

Affected

Problem Types

Metrics

Metrics Other Info

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References