What is CVE-2026-30920?

CVE-2026-30920 is a high-severity vulnerability in Oneuptime, classified under Insufficient Verification of Data Authenticity. CVSS score: 8.6/10. Published 2026-03-09.

How severe is CVE-2026-30920?

High severity. CVSS v3 base score is 8.6 out of 10.

Auth bypass in Oneuptime

CVE-2026-30920

OneUptime is a solution for monitoring and managing online services. Prior to 10.0.19, OneUptime's GitHub App callback trusts attacker-controlled state and installation_id values and updates Project.gitHubAppInstallationId with isRoot: tru…

EPSS: 0.000 (1.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L.

Affected products

Oneuptime — versions < 10.0.19

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity
CWE-639 — Authorization Bypass Through User-Controlled Key
CWE-862 — Missing Authorization

References

https://github.com/OneUptime/oneuptime/security/advisories/GHSA-656w-6f6c-m9r6 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-30920?: CVE-2026-30920 is a high-severity vulnerability in Oneuptime, classified under Insufficient Verification of Data Authenticity. CVSS score: 8.6/10. Published 2026-03-09.
How severe is CVE-2026-30920?: High severity. CVSS v3 base score is 8.6 out of 10.