CVE-2025-68662

Name: CVE-2025-68662
Creator: NVD / NIST
Published: 2026-01-28T20:16:11.86+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.9/10EPSS 0.30%

Last modified Jun 17, 2026

CVE-2025-68662 is a critical-severity vulnerability rated 9.9/10 on the CVSS scale. 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. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.9/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

0.30%

21.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Discourse	Discourse	< 3.5.4
Discourse	Discourse	>= 2025.11.0, < 2025.11.2
Discourse	Discourse	2025.12.0
Discourse	Discourse	2026.1.0

References

https://github.com/discourse/discourse/security/advisories/GHSA-gcfp-rjfc-925cThird Party Advisory

Timeline

Published: Jan 28, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-68662?

How severe is CVE-2025-68662?

CVE-2025-68662 has a CVSS score of 9.9/10 (CRITICAL severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2025-68662?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-68662?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST