PT-2026-5185 · Discourse · Discourse

Published 2026-01-28 · Updated 2026-02-02 · CVE-2025-68662

Positive Technologies (AI Summary)

CVSS v3.1

9.9

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 3.5.4 Discourse versions prior to 2025.11.2 Discourse versions prior to 2025.12.1 Discourse versions prior to 2026.1.0

Description Discourse is an open source discussion platform. A hostname validation issue in the FinalDestination component could allow bypassing Server-Side Request Forgery (SSRF) protections under certain conditions.

Recommendations Update Discourse to version 3.5.4 or later. Update Discourse to version 2025.11.2 or later. Update Discourse to version 2025.12.1 or later. Update Discourse to version 2026.1.0 or later.

Exploit

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

BIT-DISCOURSE-2025-68662

CVE-2025-68662

GHSA-GCFP-RJFC-925C

Affected Products

Discourse

References · 8

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68662.json · Exploit
• https://osv.dev/vulnerability/BIT-discourse-2025-68662 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-68662 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-68662 · Security Note
• https://github.com/discourse/discourse/security/advisories/GHSA-gcfp-rjfc-925c · Note
• https://twitter.com/pulsepatchio/status/2018334429064643012 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2016722149751259433 · Twitter Post
• https://twitter.com/CVEnew/status/2016596623602684261 · Twitter Post