Authorization Bypass in Discourse Discussion Platform
CVE-2026-33251

5.4MEDIUM

Key Information:

Vendor

Discourse
Status
Discourse
Vendor
CVE Published:
20 March 2026

What is CVE-2026-33251?

An authorization bypass vulnerability exists in the Discourse discussion platform that allows unauthorized users to accept or unaccept solutions in hidden solved topics. This issue affects versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, which include fixes. To mitigate the risk, it is recommended to restrict the 'accept_all_solutions_allowed_groups' setting to trusted users only.

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Affected Version(s)

discourse >= 2026.1.0-latest, < 2026.1.2 < 2026.1.0-latest, 2026.1.2

discourse >= 2026.2.0-latest, < 2026.2.1 < 2026.2.0-latest, 2026.2.1

discourse = 2026.3.0-latest = 2026.3.0-latest

References

https://github.com/discourse/discourse/security/advisorie...
x_refsource_CONFIRM

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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