CVE-2026-90450

MEDIUM CVSS 4.0: 5.3 EPSS 0.18%
Updated Oct 03, 2026
Cisa
Parameter Value
CVSS 5.3 (MEDIUM)
Type CWE-863 (Incorrect Authorization)
Vendor Cisa
Public PoC No

The application's role-authorization lookup defaults to granting access when a request handler's name is not present in its table of role requirements, rather than defaulting to deny. Any request handler that is not explicitly registered in this table is reachable by any authenticated user regardless of their assigned role, and any newly added handler is fail-open by default until explicitly added to the table.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v4.0

Vulnerable Products

cisa:malcolm