391 lines
18 KiB
JSON
391 lines
18 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-19706",
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"state": "PUBLISHED",
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"dateReserved": "2026-08-13T09:18:22.162Z",
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"datePublished": "2026-11-09T17:20:11.310Z",
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"dateUpdated": "2026-11-12T17:53:53.516Z"
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},
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"containers": {
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"cna": {
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"title": "Openshift/installer: openshift installer: unconditional csr approval during agent-based installation (abi) bootstrap",
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"metrics": [
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{
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"other": {
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"type": "Red Hat severity rating"
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}
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},
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{
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"cvssV3_1": {
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"attackComplexity": "HIGH",
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"attackVector": "ADJACENT_NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 8.3,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
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"version": "3.1"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "During ABI bootstrap, the bootstrap node's approve-csr.service approves and signs every CSR without identity validation.\n\nAn attacker on the install network can retrieve the unauthenticated Ignition file (ports 22623/22624), extract a limited kubeconfig, submit a CSR for CN=system:admin, receive the signed certificate, and gain full cluster-admin access.\n\nExploitable only during the narrow bootstrap window."
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}
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]
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{
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},
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{
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"url": "https://kubernetes.io/docs/reference/access-authn-authz/certificate-signing-requests/"
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"credits": [
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{
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"lang": "en",
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"value": "Red Hat would like to thank Chi Zhang (cz21) (External Researcher (August 8, 2026)) and Christopher Lusk (North Echo Security Research (August 26, 2026)) for reporting this issue."
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}
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"metrics": [
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"content": {
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"timestamp": "2026-11-09T22:44:42.460170Z",
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"id": "CVE-2026-19706",
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"options": [
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