What is CVE-2026-3789?

CVE-2026-3789 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-2026-3789?

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

SSRF in Bytedesk

CVE-2026-3789

A vulnerability was detected in Bytedesk up to 1.3.9. Affected is the function getModels of the file source-code/src/main/java/com/bytedesk/ai/springai/providers/gitee/SpringAIGiteeRestService.java of the component SpringAIGiteeRestController. Performing a manipulation of the argument apiUrl results in server-side request forgery. Remote exploitation of the attack is possible. The exploit is now public and may be used. Upgrading to version 1.4.5.4 is able to address this issue. The patch is named 975e39e4dd527596987559f56c5f9f973f64eff7. Upgrading the affected component is advised.

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 2026-10-05.

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/21 (issue-tracking, Exploit, Vendor Advisory)
github.com/Bytedesk/bytedesk/issues/21 (issue-tracking, Exploit, Vendor Advisory)
github.com/Bytedesk/bytedesk/issues/21 (issue-tracking, Exploit, exploit, Vendor Advisory)
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-2026-3789?: CVE-2026-3789 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-2026-3789?: Medium severity. CVSS v3 base score is 6.3 out of 10.