CVE-2024-37157: discourse SSRF — Fix

Description

Discourse is an open-source discussion platform. Prior to version 3.2.3 on the `stable` branch and version 3.3.0.beta4 on the `beta` and `tests-passed` branches, a malicious actor could get the FastImage library to redirect requests to an internal Discourse IP. This issue is patched in version 3.2.3 on the `stable` branch and version 3.3.0.beta4 on the `beta` and `tests-passed` branches. No known workarounds are available.

Is your site exposed to CVE-2024-37157?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

6.4

MEDIUM

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

Weakness Type (CWE)

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Vendor	Product	Versions
discourse	discourse	< 3.2.3
discourse	discourse	< 3.3.0
discourse	discourse	All
discourse	discourse	All
discourse	discourse	All

References

Advisories & Patches

https://github.com/discourse/discourse/commit/5b8cf11b69e05d5c058c1148ec69ec309491fa6e https://github.com/discourse/discourse/commit/67e78086035cec494b15ce79342a0cb9052c2d95 https://github.com/discourse/discourse/commit/5b8cf11b69e05d5c058c1148ec69ec309491fa6e https://github.com/discourse/discourse/commit/67e78086035cec494b15ce79342a0cb9052c2d95

Other References

https://github.com/discourse/discourse/security/advisories/GHSA-46pq-7958-fc68 https://github.com/discourse/discourse/security/advisories/GHSA-46pq-7958-fc68

Frequently Asked Questions

What is CVE-2024-37157? +

Discourse is an open-source discussion platform. Prior to version 3.2.3 on the `stable` branch and version 3.3.0.beta4 on the `beta` and `tests-passed` branches, a malicious actor could get the FastImage library to redirect requests to an internal Discourse IP. This issue is patched in version 3.2.3 on the `stable` branch and version 3.3.0.beta4 on the `beta` and `tests-passed` branches. No known workarounds are available. It has a CVSS v3.1 base score of 6.4 (MEDIUM).

How severe is CVE-2024-37157? +

CVE-2024-37157 has a CVSS v3.1 score of 6.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-37157? +

CVE-2024-37157 affects products from discourse, specifically: discourse. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-37157? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-42336

MaxKB is an open-source AI assistant for enterprise. MaxKB 2.8.0 and prior are vulnerable to a server-side request forgery (SSRF) …

CVE-2026-41682

pupnp is an SDK for development of UPnP device and control point applications. Prior to version 1.18.5, pupnp is vulnerable …

CVE-2026-44286

FastGPT is an AI Agent building platform. Prior to version 4.14.17, an unauthenticated Server-Side Request Forgery (SSRF) vulnerability allows attackers …

CVE-2026-41172

Squidex is an open source headless content management system and content management hub. Prior to version 7.23.0, an SSRF vulnerability …

CVE-2026-45412

MaxKB is an open-source AI assistant for enterprise. Prior to 2.9.1, SSRF via work_flow_template Import. Authenticated users can supply arbitrary …

CVE-2026-41129

Craft CMS is a content management system (CMS). Versions on the 4.x branch through 4.17.8 and the 5.x branch through …

CVE-2024-37157