Disclosure summary
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.
Source-reported weakness categories
CWE-285, CWE-862
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2026-30956
Open original source · Updated Oct 07, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| hackerbay | oneuptime | * {"versionEndExcluding":"10.0.21"} |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Product, Release Notes
- github.com — Exploit, Vendor Advisory
PUBLISHED 2026-03-10T14:18:54-04:00
MODIFIED 2026-10-07T04:10:00-04:00
INGESTED 2026-10-08T12:40:21-04:00