CVE-2026-15638

CRITICAL CVSS 4.0: 9.1
Updated Sep 16, 2026
Oracle
Parameter Value
CVSS 9.1 (CRITICAL)
Type CWE-327 (Weak Crypto Algorithm)
Vendor Oracle
Public PoC No

An unauthenticated user with access to Secret Server could leverage a padding oracle to decrypt or encrypt data using one of the server's cryptographic keys. The key itself is not exposed.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

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

CVSS Vector v4.0