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Description

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.

PUBLISHED Reserved 2026-03-07 | Published 2026-03-09 | Updated 2026-03-09 | Assigner GitHub_M




HIGH: 8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

Problem types

CWE-345: Insufficient Verification of Data Authenticity

CWE-639: Authorization Bypass Through User-Controlled Key

CWE-862: Missing Authorization

Product status

< 10.0.19
affected

References

github.com/...uptime/security/advisories/GHSA-656w-6f6c-m9r6

cve.org (CVE-2026-30920)

nvd.nist.gov (CVE-2026-30920)

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