CVE-2026-30956
CVE-2026-30956 · OneUptime has authorization bypass via client‑controlled is-multi-tenant-query header
This page contains facts from public vulnerability sources. Check the original advisory before updating.
OneUptime is a solution for monitoring and managing online services. Prior to 10.0.21, a low‑privileged user can bypass authorization and tenant isolation in OneUptime v10.0.20 and earlier by sending a forged is-multi-tenant-query header together with a controlled projectid header. Because the server trusts this client-supplied header, internal permission checks in BasePermission are skipped and tenant scoping is disabled. This allows attackers to access project data belonging to other tenants, read sensitive User fields via nested relations, leak plaintext resetPasswordToken, and reset the victim’s password and fully take over the account. This results in cross‑tenant data exposure and full account takeover. This vulnerability is fixed in 10.0.21.
CVSS 10.0 · Critical · EPSS 0.5% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
oneuptime
- Versions
- < 10.0.21: Affected
No fix published
@oneuptime/common npm
- Affected ranges
- SEMVER: < 10.0.21
Update to 10.0.21