🛡️ CVE-2026-30956
🔴 CVSS 9.9 — Critical ✅ No Known Exploit CWE-285 NVD
9.9
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity CRITICAL
CVSS Score 9.9
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE CWE-285
Public Exploit âś… No
Source NVD
Published 2026-03-10
Updated 2026-06-02
Modified 2026-03-10
Fix URL N/A

Affected Packages

Software From version Fixed in
@oneuptime/common — —
oneuptime — 10.0.21

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