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CVE-2026-3963

MEDIUM CVSS 4.0: 6.3 EPSS 0.03%
Updated Mar 11, 2026
Apache
Parameter Value
CVSS 6.3 (MEDIUM)
Type CWE-320, CWE-321
Vendor Apache
Public PoC No

A security flaw has been discovered in perfree go-fastdfs-web up to 1.3.7. This affects the function rememberMeManager of the file src/main/java/com/perfree/config/ShiroConfig.java of the component Apache Shiro RememberMe. Performing a manipulation results in use of hard-coded cryptographic key .

The attack can be initiated remotely. The complexity of an attack is rather high. The exploitability is reported as difficult.

The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No 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

Weakness Type (CWE)