CVE-2026-40346: nocobase SSRF — Exploit & Fix

Description

NocoBase is an AI-powered no-code/low-code platform for building business applications and enterprise solutions. Prior to version 2.0.37, NocoBase's workflow HTTP request plugin and custom request action plugin make server-side HTTP requests to user-provided URLs without any SSRF protection. An authenticated user can access internal network services, cloud metadata endpoints, and localhost. Version 2.0.37 contains a patch.

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CVSS v3.1 Score

6.5

MEDIUM

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

EPSS — Exploit Prediction

0.0001

Probability of exploitation

0.02%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Vendor	Product	Versions
nocobase	nocobase	< 2.0.37

References

Advisories & Patches

https://github.com/nocobase/nocobase/commit/2853368243ed07339c62c548b7d475f4eeaada59 https://github.com/nocobase/nocobase/pull/9079 https://github.com/nocobase/nocobase/security/advisories/GHSA-mvvv-v22x-xqwp

Exploits

https://github.com/nocobase/nocobase/pull/9079 https://github.com/nocobase/nocobase/security/advisories/GHSA-mvvv-v22x-xqwp

Other References

https://github.com/nocobase/nocobase/releases/tag/v2.0.37

Frequently Asked Questions

What is CVE-2026-40346? +

NocoBase is an AI-powered no-code/low-code platform for building business applications and enterprise solutions. Prior to version 2.0.37, NocoBase's workflow HTTP request plugin and custom request action plugin make server-side HTTP requests to user-provided URLs without any SSRF protection. An authenticated user can access internal network services, cloud metadata endpoints, and localhost. Version 2.0.37 contains a patch. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-40346? +

CVE-2026-40346 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0001, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-40346? +

CVE-2026-40346 affects products from nocobase, specifically: nocobase. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-40346? +

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.

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