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.
This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 10.0, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 4 products from wso2, from wso2, from wso2 and 1 other, organizations running these solutions should prioritize assessment and patching.
Reported in 2026, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2026-08-06T08:16:33.240
2026-08-10T12:35:29.103
Analyzed
ed10eef1-636d-4fbe-9993-6890dfa878f8
CVSSv3.1: 10.0 (CRITICAL)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | wso2 | api_control_plane | < 4.5.0.58 | Yes |
| Application | wso2 | api_control_plane | < 4.6.0.22 | Yes |
| Application | wso2 | api_manager | < 4.1.0.257 | Yes |
| Application | wso2 | api_manager | < 4.2.0.197 | Yes |
| Application | wso2 | api_manager | < 4.3.0.108 | Yes |
| Application | wso2 | api_manager | < 4.4.0.72 | Yes |
| Application | wso2 | api_manager | < 4.5.0.57 | Yes |
| Application | wso2 | api_manager | < 4.6.0.21 | Yes |
| Application | wso2 | traffic_manager | < 4.5.0.56 | Yes |
| Application | wso2 | traffic_manager | < 4.6.0.21 | Yes |
| Application | wso2 | universal_gateway | < 4.5.0.57 | Yes |
| Application | wso2 | universal_gateway | < 4.6.0.21 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For wso2's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.