Severity:

CRITICAL RISK

(9.1)

Cryptographic Key Management and Unsafe Deserialization

CVE-2026-5426

Published:

Apr 16, 2026

Status:

Awaiting Analysis

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Vulnerability Type

Category:

Cryptographic Key Management and Unsafe Deserialization

CWE:

CWE-321;CWE-502

Impact:

Remote Code Execution via Forged ViewState

Severity:

CRITICAL RISK

(9.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Cryptographic Key Management and Unsafe Deserialization

CWE:

CWE-321;CWE-502

Impact:

Remote Code Execution via Forged ViewState

Severity:

CRITICAL RISK

(9.1)

CVSS Version:

3.1

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Recent Vulnerabilities

CWE-284

HIGH RISK

(8.1)

Improper Access Control (CWE-284) in Keycloak JWT Grants

Unauthorized Access and Privilege Misuse

CWE-287;CWE-290

CRITICAL RISK

(9.8)

Header Login Bypass (CWE-287) in Wekan Kanban Auth

Full Account Takeover and Privilege Escalation

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