CRITICAL🇵🇱 Wersja polska

CVE-2026-5430

CVSS 10.0v3.1pub. 2026-08-06upd. 2026-08-10

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.

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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Wso2 Api Control Plane
APP
Wso2
4.5.0 – 4.5.0.58 (excl.)4.6.0 – 4.6.0.22 (excl.)
Wso2 Api Manager
APP
Wso2
4.1.0 – 4.1.0.257 (excl.)4.2.0 – 4.2.0.197 (excl.)4.3.0 – 4.3.0.108 (excl.)4.4.0 – 4.4.0.72 (excl.)4.5.0 – 4.5.0.57 (excl.)4.6.0 – 4.6.0.21 (excl.)
Wso2 Traffic Manager
APP
Wso2
4.5.0 – 4.5.0.56 (excl.)4.6.0 – 4.6.0.21 (excl.)
Wso2 Universal Gateway
APP
Wso2
4.5.0 – 4.5.0.57 (excl.)4.6.0 – 4.6.0.21 (excl.)