cve-2026-5430
CRITICAL CVSS 10.0 nvd
Description
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.
Timeline
- Published
- 2026-08-06
- Last Modified
- 2026-09-25
CVSS Details
- Attack Vector
- NETWORK
- Attack Complexity
- LOW
- Privileges Required
- NONE
Affected Products
- wso2 api_control_plane
- wso2 api_manager
- wso2 traffic_manager
- wso2 universal_gateway
CISA KEV — Known Exploited Vulnerability
- Name
- WSO2 Multiple Products Path Traversal Vulnerability
- Added to KEV
- 2026-09-24
- Action due
- 2026-09-27
- Required action
- Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Weaknesses (CWE)
CVSS metrics
| Version | Base | Severity | Vector | Exploitability | Impact | Source |
|---|---|---|---|---|---|---|
| 3.1 | 10.0 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
3.9 | 6.0 | ed10eef1-636d-4fbe-9993-6890dfa878f8 |
CPE configurations
OR
| CPE | Version range | Vulnerable |
|---|---|---|
cpe:2.3:a:wso2:api_control_plane:*:*:*:*:*:*:*:* |
>= 4.5.0, < 4.5.0.58 | yes |
cpe:2.3:a:wso2:api_control_plane:*:*:*:*:*:*:*:* |
>= 4.6.0, < 4.6.0.22 | yes |
OR
| CPE | Version range | Vulnerable |
|---|---|---|
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:* |
>= 4.1.0, < 4.1.0.257 | yes |
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:* |
>= 4.2.0, < 4.2.0.197 | yes |
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:* |
>= 4.3.0, < 4.3.0.108 | yes |
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:* |
>= 4.4.0, < 4.4.0.72 | yes |
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:* |
>= 4.5.0, < 4.5.0.57 | yes |
cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:* |
>= 4.6.0, < 4.6.0.21 | yes |
OR
| CPE | Version range | Vulnerable |
|---|---|---|
cpe:2.3:a:wso2:traffic_manager:*:*:*:*:*:*:*:* |
>= 4.5.0, < 4.5.0.56 | yes |
cpe:2.3:a:wso2:traffic_manager:*:*:*:*:*:*:*:* |
>= 4.6.0, < 4.6.0.21 | yes |
OR
| CPE | Version range | Vulnerable |
|---|---|---|
cpe:2.3:a:wso2:universal_gateway:*:*:*:*:*:*:*:* |
>= 4.5.0, < 4.5.0.57 | yes |
cpe:2.3:a:wso2:universal_gateway:*:*:*:*:*:*:*:* |
>= 4.6.0, < 4.6.0.21 | yes |
NVD metadata
- NVD status
- Analyzed
- Source identifier
ed10eef1-636d-4fbe-9993-6890dfa878f8
References
Linked Vulnerabilities
No linked vulnerabilities found.
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Enrichment data
Aggregated bundle (all enrichments)