What is CVE-2026-34216?

CVE-2026-34216 is a medium-severity vulnerability in Ctrlpanel-gg Panel, classified under Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection). CVSS score: 6.6/10. Published 2026-05-19.

How severe is CVE-2026-34216?

Medium severity. CVSS v3 base score is 6.6 out of 10.

Vulnerability in Ctrlpanel-gg Panel

CVE-2026-34216

CtrlPanel is open-source billing software for hosting providers. In versions 1.1.1 and prior, the admin settings update endpoint accepted a fully qualified class name directly from user-supplied request input and used it for dynamic static…

EPSS: 0.004 (61.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ctrlpanel-gg Panel — versions < 1.2.0

Weakness classification (CWE)

CWE-470 — Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-34216?: CVE-2026-34216 is a medium-severity vulnerability in Ctrlpanel-gg Panel, classified under Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection). CVSS score: 6.6/10. Published 2026-05-19.
How severe is CVE-2026-34216?: Medium severity. CVSS v3 base score is 6.6 out of 10.