What is CVE-2026-33422?

CVE-2026-33422 is a low-severity vulnerability in Discourse, classified under Information Disclosure. CVSS score: 3.5/10. Published 2026-03-20.

How severe is CVE-2026-33422?

Low severity. CVSS v3 base score is 3.5 out of 10.

Information disclosure in Discourse

CVE-2026-33422

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, the `ip_address` of a flagged user is exposed to any user who can access the review queue, including users who should not be able to see IP addresses. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

Vulnerability class: Information Disclosure

EPSS: 0.003 (20.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N.

Affected products

Discourse — versions = 2026.3.0-latest, >= 2026.2.0-latest, < 2026.2.1, >= 2026.1.0-latest, < 2026.1.2

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-33422?: CVE-2026-33422 is a low-severity vulnerability in Discourse, classified under Information Disclosure. CVSS score: 3.5/10. Published 2026-03-20.
How severe is CVE-2026-33422?: Low severity. CVSS v3 base score is 3.5 out of 10.