PT-2026-30244 · Discourse · Discourse

Davidtaylorhq · CVE-2026-34947 · Published 2026-04-03 · Updated 2026-07-24

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Discourse versions 2026.1.0 through 2026.1.2, 2026.2.0 through 2026.2.1, and 2026.3.0

Description Discourse, an open-source discussion platform, has an issue where staged user custom fields and usernames are exposed on public invite pages without email verification.

Recommendations Update to Discourse version 2026.1.3 or later. Update to Discourse version 2026.2.2 or later. Update to Discourse version 2026.3.0 or later.

Exploit

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

BIT-DISCOURSE-2026-34947

CVE-2026-34947

GHSA-4RCW-WQ9X-54QW

Affected Products

Discourse

References · 6

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34947.json · Exploit
• https://github.com/discourse/discourse/security/advisories/GHSA-4rcw-wq9x-54qw · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-34947 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-discourse-2026-34947 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-34947 · Security Note
• https://t.me/cveNotify/222516 · Telegram Post