What is CVE-2026-30887?

CVE-2026-30887 is a critical-severity vulnerability in Oneuptime, classified under Code Injection. CVSS score: 10.0/10. Published 2026-03-09.

How severe is CVE-2026-30887?

Critical severity. CVSS v3 base score is 10.0 out of 10.

RCE in Oneuptime

CVE-2026-30887

OneUptime is a solution for monitoring and managing online services. Prior to 10.0.18, OneUptime allows project members to run custom Playwright/JavaScript code via Synthetic Monitors to test websites. However, the system executes this unt…

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.001 (22.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Oneuptime — versions < 10.0.18

Weakness classification (CWE)

CWE-94 — Code Injection

References

https://github.com/OneUptime/oneuptime/security/advisories/GHSA-h343-gg57-2q67 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-30887?: CVE-2026-30887 is a critical-severity vulnerability in Oneuptime, classified under Code Injection. CVSS score: 10.0/10. Published 2026-03-09.
How severe is CVE-2026-30887?: Critical severity. CVSS v3 base score is 10.0 out of 10.