What is CVE-2026-3788?

CVE-2026-3788 is a medium-severity vulnerability in Bytedesk, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.3/10. Published 2026-03-09.

How severe is CVE-2026-3788?

Medium severity. CVSS v3 base score is 6.3 out of 10.

SSRF in Bytedesk

CVE-2026-3788

A security vulnerability has been detected in Bytedesk up to 1.3.9. This impacts the function getModels of the file source-code/src/main/java/com/bytedesk/ai/springai/providers/openrouter/SpringAIOpenrouterRestService.java of the component SpringAIOpenrouterRestController. Such manipulation of the argument apiUrl leads to server-side request forgery. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 1.4.5.4 will fix this issue. The name of the patch is 975e39e4dd527596987559f56c5f9f973f64eff7. It is recommended to upgrade the affected component.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-03-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.007 (50.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.007 · change: +0.003

Affected products

Bytedesk
Bytedesk — versions 1.3.0, 1.3.1, 1.3.2

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
github.com/Bytedesk/bytedesk/issues/20 (issue-tracking, Exploit, Third Party Advisory)
github.com/Bytedesk/bytedesk/issues/20 (issue-tracking, Exploit, Third Party Advisory)
github.com/Bytedesk/bytedesk/issues/20 (issue-tracking, Exploit, Third Party Advisory, exploit)
github.com/Bytedesk/bytedesk/commit/975e39e4dd527596987559f56c5f9f973f64eff7 (Patch, patch)
github.com/Bytedesk/bytedesk/releases/tag/v1.4.5.4 (Release Notes, patch)
github.com/Bytedesk/bytedesk/ (Product, product)

Frequently asked questions

What is CVE-2026-3788?: CVE-2026-3788 is a medium-severity vulnerability in Bytedesk, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.3/10. Published 2026-03-09.
How severe is CVE-2026-3788?: Medium severity. CVSS v3 base score is 6.3 out of 10.