Vulnerability · Published May 19, 2026 · Assigned by GitHub_M

CVE-2026-34154Discourse has a subscription access bypass in its discourse-subscriptions plugin

Low 2.1

In plain English

A low-severity missing authorization in discourse from discourse. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 4.0)2.1Low
Exploit odds (30 days)0.2%top 88.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, a vulnerability in the discourse-subscriptions plugin allows users to gain access to subscription-gated groups without completing payment. This issue has been fixed in versions 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1.

Affected products (as reported)

VendorProductVersions
discourse discourse < 2026.1.4>= 2026.3.0-latest, < 2026.3.1>= 2026.4.0-latest, < 2026.4.1>= 2026.5.0-latest, < 2026.5.0-latest.1

Weakness: CWE-862 · Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References