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Vulnerability record · CVE-2025-68662 · published 28 January 2026

CVE-2025-68662: Discourse server-side request forgery (ssrf) vulnerability

Discourse · Discourse

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.

9.9 CVSS 3.1 Critical EPSS 0.33% · top 76.3% CWE-918 · Server-side request forgery (SSRF)
9.9CVSS 3.1 base score
0.33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-47121Discourse server-side request forgery (ssrf) vulnerabilityDiscourse is an open source platform for community discussion. Prior to version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` an…EPSS 0.69%9.8CVE-2021-41163Discourse injection vulnerabilityDiscourse is an open source platform for community discussion. In affected versions maliciously crafted requests could lead to remote code execution.…EPSS 20%9.1CVE-2024-49765Discourse vulnerabilityDiscourse is an open source platform for community discussion. Sites that are using discourse connect but still have local logins enabled could allow…EPSS 0.36%9.0CVE-2026-53963Discourse cross-site scripting vulnerabilityDiscourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a malicious second factor name on an attacker-c…EPSS 0.74%8.8CVE-2022-39356Discourse improper authorization vulnerabilityDiscourse is a platform for community discussion. Users who receive an invitation link that is not scoped to a single email address can enter any non…EPSS 0.61%8.8CVE-2022-21684Discourse improper authentication vulnerabilityDiscourse is an open source discussion platform. Versions prior to 2.7.13 in `stable`, 2.8.0.beta11 in `beta`, and 2.8.0.beta11 in `tests-passed` all…EPSS 0.83%8.7CVE-2026-27934Discourse vulnerabilityDiscourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 have a lack of visibility checks with a …EPSS 0.42%8.7CVE-2025-48053Discourse uncontrolled resource consumption vulnerabilityDiscourse is an open-source discussion platform. Prior to version 3.4.4 of the `stable` branch, version 3.5.0.beta5 of the `beta` branch, and version…EPSS 0.37%

Source: NIST National Vulnerability Database (record CVE-2025-68662), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.