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vuln-cve/data/2026/41xxx/CVE-2026-41323.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-41323",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-04-20T14:01:46.672Z",
"datePublished": "2026-04-24T03:21:36.265Z",
"dateUpdated": "2026-04-24T12:05:00.276Z"
},
"containers": {
"cna": {
"title": "Kyverno: ServiceAccount token leaked to external servers via apiCall service URL",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"lang": "en",
"description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-918",
"lang": "en",
"description": "CWE-918: Server-Side Request Forgery (SSRF)",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/kyverno/kyverno/security/advisories/GHSA-f9g8-6ppc-pqq4",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/kyverno/kyverno/security/advisories/GHSA-f9g8-6ppc-pqq4"
},
{
"name": "https://github.com/kyverno/kyverno/commit/bc4f91c4801b1eaa2edc0a14e2f1b0af8cf0c1f5",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/kyverno/kyverno/commit/bc4f91c4801b1eaa2edc0a14e2f1b0af8cf0c1f5"
},
{
"name": "https://github.com/kyverno/kyverno/commit/c2eab00033e635bda4e4efb58c1b472b41728bb6",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/kyverno/kyverno/commit/c2eab00033e635bda4e4efb58c1b472b41728bb6"
},
{
"name": "https://github.com/kyverno/kyverno/commit/f70e8ac1e7acd2e3844f9553e4a884f07f953de0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/kyverno/kyverno/commit/f70e8ac1e7acd2e3844f9553e4a884f07f953de0"
}
],
"affected": [
{
"vendor": "kyverno",
"product": "kyverno",
"versions": [
{
"version": "< 1.16.4",
"status": "affected"
},
{
"version": ">= 1.17.0-rc1, < 1.17.2-rc1",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-04-24T03:21:36.265Z"
},
"descriptions": [
{
"lang": "en",
"value": "Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to versions 1.18.0-rc1, 1.17.2-rc1, and 1.16.4, Kyverno's apiCall feature in ClusterPolicy automatically attaches the admission controller's ServiceAccount token to outgoing HTTP requests. The service URL has no validation — it can point anywhere, including attacker-controlled servers. Since the admission controller SA has permissions to patch webhook configurations, a stolen token leads to full cluster compromise. Versions 1.18.0-rc1, 1.17.2-rc1, and 1.16.4 patch the issue."
}
],
"source": {
"advisory": "GHSA-f9g8-6ppc-pqq4",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/kyverno/kyverno/security/advisories/GHSA-f9g8-6ppc-pqq4",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-04-24T12:04:48.048182Z",
"id": "CVE-2026-41323",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-04-24T12:05:00.276Z"
}
}
]
}
}