Security Advisory catalog CVE-2026-5430
cve-program · CVE-2026-5430 Published
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.
Read the publisher's advisory Affected versions, risk and source history
cve-program · CVE-2026-5430 Published WSO2 Universal Gateway Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "WSO2",
"product": "WSO2 Universal Gateway",
"versions": [
{
"status": "affected",
"version": "4.5.0",
"lessThan": "4.5.0.57",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.6.0",
"lessThan": "4.6.0.21",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
} WSO2 Traffic Manager Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "WSO2",
"product": "WSO2 Traffic Manager",
"versions": [
{
"status": "affected",
"version": "4.5.0",
"lessThan": "4.5.0.56",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.6.0",
"lessThan": "4.6.0.21",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
} WSO2 API Control Plane Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "WSO2",
"product": "WSO2 API Control Plane",
"versions": [
{
"status": "affected",
"version": "4.5.0",
"lessThan": "4.5.0.58",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.6.0",
"lessThan": "4.6.0.22",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
} WSO2 API Manager Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "WSO2",
"product": "WSO2 API Manager",
"versions": [
{
"status": "unknown",
"version": "0",
"lessThan": "4.1.0",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.1.0",
"lessThan": "4.1.0.257",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.2.0",
"lessThan": "4.2.0.197",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.3.0",
"lessThan": "4.3.0.108",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.4.0",
"lessThan": "4.4.0.72",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.5.0",
"lessThan": "4.5.0.57",
"versionType": "custom"
},
{
"status": "affected",
"version": "4.6.0",
"lessThan": "4.6.0.21",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
} org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.rest.api.util Vendor product
Publisher's version information Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "WSO2",
"product": "WSO2 Carbon API Manager Rest API Utility",
"packageName": "org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.rest.api.util",
"versions": [
{
"status": "affected",
"version": "9.20.74",
"lessThan": "9.20.74.401",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.28.116",
"lessThan": "9.28.116.417",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.29.120",
"lessThan": "9.29.120.236",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.30.67",
"lessThan": "9.30.67.167",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.31.86",
"lessThan": "9.31.86.158",
"versionType": "custom"
},
{
"status": "affected",
"version": "9.32.147",
"lessThan": "9.32.147.59",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "9.33.106",
"lessThanOrEqual": "*",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
} Original source record · Cite this exact observation · Complete original publisher JSON