What is CVE-2026-33130?

CVE-2026-33130 is a medium-severity vulnerability in Louislam Uptime-kuma, classified under PHP Remote File Inclusion. CVSS score: 6.5/10. Published 2026-03-20.

How severe is CVE-2026-33130?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Louislam Uptime-kuma

CVE-2026-33130

Uptime Kuma is an open source, self-hosted monitoring tool. In versions 1.23.0 through 2.2.0, the fix from GHSA-vffh-c9pq-4crh doesn't fully work to preventServer-side Template Injection (SSTI). The three mitigations added to the Liquid en…

EPSS: 0.000 (15.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Louislam Uptime-kuma — versions >= 1.23.0, < 2.2.1

Weakness classification (CWE)

References

https://github.com/louislam/uptime-kuma/security/advisories/GHSA-v832-4r73-wx5j (x_refsource_CONFIRM)
https://github.com/advisories/GHSA-vffh-c9pq-4crh (x_refsource_MISC)
https://github.com/louislam/uptime-kuma/releases/tag/2.2.1 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33130?: CVE-2026-33130 is a medium-severity vulnerability in Louislam Uptime-kuma, classified under PHP Remote File Inclusion. CVSS score: 6.5/10. Published 2026-03-20.
How severe is CVE-2026-33130?: Medium severity. CVSS v3 base score is 6.5 out of 10.