CVE-2026-30920 HIGH

CVE-2026-30920: OneUptime has broken access control in GitHub App installation flow that allows unauthorized project binding

Vendor Oneuptime
Product oneuptime
Weakness CWE-345
Published March 9, 2026
Last update March 10, 2026
View on NVD All CVEs

CVSS base score

8.6/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

What the vulnerability does

01Description

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: true without validating that the caller is authorized for the target project. This allows an attacker to overwrite another project's GitHub App installation binding. Related GitHub endpoints also lack effective authorization, so a valid installation ID can be used to enumerate repositories and create CodeRepository records in an arbitrary project. This vulnerability is fixed in 10.0.19.

Key dates

02Disclosure timeline

March 9, 2026 CVE published
March 10, 2026 Record updated