Answer in brief
CVE-2026-5430 records a Unknown severity vulnerability in Authentication Bypass via JWT Algorithm Mismatch in Multiple WSO2 Products Allows Account Takeover. The current sources do not mark it as known exploited. The current feed maps WSO2/WSO2 API Control Plane (generic), WSO2/WSO2 API Manager (generic), WSO2/WSO2 Carbon API Manager Rest API Utility (generic), WSO2/WSO2 Traffic Manager (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps WSO2/WSO2 API Control Plane (generic), WSO2/WSO2 API Manager (generic), WSO2/WSO2 Carbon API Manager Rest API Utility (generic), WSO2/WSO2 Traffic Manager (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| WSO2/WSO2 API Control Planegeneric | >=4.5.0 <4.5.0.58 || >=4.6.0 <4.6.0.22 | 4.5.0.58, 4.6.0.22 |
| WSO2/WSO2 API Managergeneric | >=4.1.0 <4.1.0.257 || >=4.2.0 <4.2.0.197 || >=4.3.0 <4.3.0.108 || >=4.4.0 <4.4.0.72 || >=4.5.0 <4.5.0.57 || >=4.6.0 <4.6.0.21 | 4.1.0.257, 4.2.0.197, 4.3.0.108, 4.4.0.72, 4.5.0.57, 4.6.0.21 |
| WSO2/WSO2 Carbon API Manager Rest API Utilitygeneric | >=9.20.74 <9.20.74.401 || >=9.28.116 <9.28.116.417 || >=9.29.120 <9.29.120.236 || >=9.30.67 <9.30.67.167 || >=9.31.86 <9.31.86.158 || >=9.32.147 <9.32.147.59 | 9.20.74.401, 9.28.116.417, 9.29.120.236, 9.30.67.167, 9.31.86.158, 9.32.147.59 |
| WSO2/WSO2 Traffic Managergeneric | >=4.5.0 <4.5.0.56 || >=4.6.0 <4.6.0.21 | 4.5.0.56, 4.6.0.21 |
| WSO2/WSO2 Universal Gatewaygeneric | >=4.5.0 <4.5.0.57 || >=4.6.0 <4.6.0.21 | 4.5.0.57, 4.6.0.21 |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-5430 records a Unknown severity vulnerability in Authentication Bypass via JWT Algorithm Mismatch in Multiple WSO2 Products Allows Account Takeover. The current sources do not mark it as known exploited. The current feed maps WSO2/WSO2 API Control Plane (generic), WSO2/WSO2 API Manager (generic), WSO2/WSO2 Carbon API Manager Rest API Utility (generic), WSO2/WSO2 Traffic Manager (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps WSO2/WSO2 API Control Plane (generic), WSO2/WSO2 API Manager (generic), WSO2/WSO2 Carbon API Manager Rest API Utility (generic), WSO2/WSO2 Traffic Manager (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| WSO2/WSO2 API Control Planegeneric | >=4.5.0 <4.5.0.58 || >=4.6.0 <4.6.0.22 | 4.5.0.58, 4.6.0.22 |
| WSO2/WSO2 API Managergeneric | >=4.1.0 <4.1.0.257 || >=4.2.0 <4.2.0.197 || >=4.3.0 <4.3.0.108 || >=4.4.0 <4.4.0.72 || >=4.5.0 <4.5.0.57 || >=4.6.0 <4.6.0.21 | 4.1.0.257, 4.2.0.197, 4.3.0.108, 4.4.0.72, 4.5.0.57, 4.6.0.21 |
| WSO2/WSO2 Carbon API Manager Rest API Utilitygeneric | >=9.20.74 <9.20.74.401 || >=9.28.116 <9.28.116.417 || >=9.29.120 <9.29.120.236 || >=9.30.67 <9.30.67.167 || >=9.31.86 <9.31.86.158 || >=9.32.147 <9.32.147.59 | 9.20.74.401, 9.28.116.417, 9.29.120.236, 9.30.67.167, 9.31.86.158, 9.32.147.59 |
| WSO2/WSO2 Traffic Managergeneric | >=4.5.0 <4.5.0.56 || >=4.6.0 <4.6.0.21 | 4.5.0.56, 4.6.0.21 |
| WSO2/WSO2 Universal Gatewaygeneric | >=4.5.0 <4.5.0.57 || >=4.6.0 <4.6.0.21 | 4.5.0.57, 4.6.0.21 |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.