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

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
OneUptime / oneuptime	affected < 10.0.19

CWE

CWE-345, CWE-639, CWE-862

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.