CVE-2026-5430

KEV
Published: Ago 06, 2026 Last Modified: Ago 10, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 10,0
Source: ed10eef1-636d-4fbe-9993-6890dfa878f8
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

The JWT authentication mechanism accepts tokens signed with algorithms other than those explicitly configured or supported. This allows an attacker to craft a JWT with an unsupported algorithm, which is then incorrectly validated, leading to unauthorized access.

Successful exploitation of this vulnerability may result in unauthorized access to the system, including the potential compromise of administrative accounts and full account takeover. The CVSS score is adjusted to 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) in single-tenant deployments, reflecting that the impact is contained within a single security authority boundary.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0022
Percentile
0,1th
Updated

EPSS Score Trend (Last 7 Days)

347

Improper Verification of Cryptographic Signature

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Integrity Confidentiality
Potential Impacts:
Gain Privileges Or Assume Identity Modify Application Data Execute Unauthorized Code Or Commands
Applicable Platforms
All platforms may be affected
View CWE Details
Application

Traffic Manager by Wso2

Product Information
Vendor Wso2
Product Traffic Manager
Version Range Affected
From 4.5.0 (inclusive)
To 4.5.0.56 (exclusive)
cpe:2.3:a:wso2:traffic_manager:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Api Manager by Wso2

Product Information
Vendor Wso2
Product Api Manager
Version Range Affected
From 4.6.0 (inclusive)
To 4.6.0.21 (exclusive)
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Api Manager by Wso2

Product Information
Vendor Wso2
Product Api Manager
Version Range Affected
From 4.2.0 (inclusive)
To 4.2.0.197 (exclusive)
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Api Manager by Wso2

Product Information
Vendor Wso2
Product Api Manager
Version Range Affected
From 4.3.0 (inclusive)
To 4.3.0.108 (exclusive)
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Api Control Plane by Wso2

Product Information
Vendor Wso2
Product Api Control Plane
Version Range Affected
From 4.5.0 (inclusive)
To 4.5.0.58 (exclusive)
cpe:2.3:a:wso2:api_control_plane:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Universal Gateway by Wso2

Product Information
Vendor Wso2
Product Universal Gateway
Version Range Affected
From 4.5.0 (inclusive)
To 4.5.0.57 (exclusive)
cpe:2.3:a:wso2:universal_gateway:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Traffic Manager by Wso2

Product Information
Vendor Wso2
Product Traffic Manager
Version Range Affected
From 4.6.0 (inclusive)
To 4.6.0.21 (exclusive)
cpe:2.3:a:wso2:traffic_manager:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Universal Gateway by Wso2

Product Information
Vendor Wso2
Product Universal Gateway
Version Range Affected
From 4.6.0 (inclusive)
To 4.6.0.21 (exclusive)
cpe:2.3:a:wso2:universal_gateway:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Api Control Plane by Wso2

Product Information
Vendor Wso2
Product Api Control Plane
Version Range Affected
From 4.6.0 (inclusive)
To 4.6.0.22 (exclusive)
cpe:2.3:a:wso2:api_control_plane:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Api Manager by Wso2

Product Information
Vendor Wso2
Product Api Manager
Version Range Affected
From 4.4.0 (inclusive)
To 4.4.0.72 (exclusive)
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Api Manager by Wso2

Product Information
Vendor Wso2
Product Api Manager
Version Range Affected
From 4.1.0 (inclusive)
To 4.1.0.257 (exclusive)
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Api Manager by Wso2

Product Information
Vendor Wso2
Product Api Manager
Version Range Affected
From 4.5.0 (inclusive)
To 4.5.0.57 (exclusive)
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://security.docs.wso2.com/en/latest/security-announcem…
https://security.docs.wso2.com/en/latest/security-announcements/security-adviso…