PT-2026-29309 · Discourse · Discourse

Davidtaylorhq · Published 2026-03-31 · Updated 2026-04-07 · CVE-2026-32618

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/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 A flaw exists in Discourse that may allow unauthorized channel membership inference from chat user search. This issue does not require authorization to exploit.

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-2026-32618

CVE-2026-32618

GHSA-PC8P-W2M7-HGF3

Affected Products

Discourse

References · 6

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32618.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-32618 · Security Note
• https://osv.dev/vulnerability/BIT-discourse-2026-32618 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-32618 · Vendor Advisory
• https://github.com/discourse/discourse/security/advisories/GHSA-pc8p-w2m7-hgf3 · Note
• https://github.com/discourse/discourse/commit/81fd89e744058e509412158e5e6ac90c856ade64 · Note