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CVE-2026-30956
ANC
Critical

OneUptime is a solution for monitoring and managing online services. Prior to 10.0.21, a low‑privileged user can bypass authorization and t…

CVSS
9.9
Critical
EPSS
0.00
p38
Published
2026-01-01
Updated
2026-01-01
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.

Tags · CWE
CWE-285
CAPEC-1
CAPEC-5
CAPEC-13
CAPEC-17
CAPEC-39
CAPEC-45
CAPEC-51
CAPEC-59
CAPEC-60
CAPEC-76
CAPEC-77
CAPEC-87
CAPEC-104
CAPEC-127
CAPEC-402
CAPEC-647
CAPEC-668
Affected products
Oneuptime < 10.0.21
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Timeline
2026-01-01
Published
2026-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: N
Network (N)
Attack Complexity
AC: L
Low (L)
Privileges Required
PR: L
Low (L)
User Interaction
UI: N
None (N)
Scope
S: C
Changed (C)
Confidentiality Impact
C: H
High (H)
Integrity Impact
I: H
High (H)
Availability Impact
A: H
High (H)
Exploit indicators
EPSS
0.005 · p38
Known exploited (KEV)
No
MITRE ATT&CK
Inferred via CAPEC
└ via CAPEC-647 · CWE-285
└ via CAPEC-647 · CWE-285
└ via CAPEC-127 · CWE-285
└ via CAPEC-60 · CWE-285
└ via CAPEC-60 · CWE-285
└ via CAPEC-647 · CWE-285
└ via CAPEC-668 · CWE-285
└ via CAPEC-13 · CWE-285
Known exploits — Сканер-ВС
No Сканер-ВС checks registered for this vulnerability yet.
Affected products
ProductVendorStatus
Tracked
oneuptime*Tracked