Vulnerability · Published Jan 28, 2026 · Assigned by GitHub_M

CVE-2025-68662FinalDestination hostname matching allows SSRF protection bypass

High 7.6

In plain English

A high-severity server-side request forgery in discourse from discourse. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS 3.1)7.6High
Exploit odds (30 days)0.3%top 74.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, a hostname validation issue in FinalDestination could allow bypassing SSRF protections under certain conditions. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. No known workarounds are available.

Affected products (as reported)

VendorProductVersions
discourse discourse < 3.5.4>= 2025.11.0-latest, < 2025.11.2>= 2025.12.0-latest, < 2025.12.1>= 2026.1.0-latest, < 2026.1.0

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

References