Information disclosure in Discourse
CVE-2026-32618
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, there is possible channel membership inference from chat user se…
Vulnerability class: Information Disclosure
EPSS: 0.000 (15.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Discourse — versions >= 2026.1.0-latest, < 2026.1.3, >= 2026.2.0-latest, < 2026.2.2, >= 2026.3.0-latest, < 2026.3.0
Weakness classification (CWE)
References
- https://github.com/discourse/discourse/security/advisories/GHSA-pc8p-w2m7-hgf3 (x_refsource_CONFIRM)
- https://github.com/discourse/discourse/commit/81fd89e744058e509412158e5e6ac90c856ade64 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-32618?
- CVE-2026-32618 is a medium-severity vulnerability in Discourse, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-03-31.
- How severe is CVE-2026-32618?
- Medium severity. CVSS v3 base score is 4.3 out of 10.