Authorization Bypass Through User-Controlled Key in Kibana Leading to Unauthorized Information Disclosure and Case Attachment Integrity Compromise
Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized information disclosure and case attachment integrity compromise via Privilege Abuse (CAPEC-122). An inconsistency in Kibana's file access authorization logic allows a low-privileged authenticated user to retrieve, modify, and delete case attachments that belong to feature areas they are not authorized to access. Because the access control check and the resource retrieval use different resolution mechanisms, an authenticated attacker with limited file management permissions can obtain the contents of, modify, or delete protected case attachments — such as those associated with Security Solution cases — without holding the privileges required to access those features.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-56147
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 01:46 UTC · Revision 1
Source evidence
Authorization Bypass Through User-Controlled Key in Kibana Leading to Unauthorized Information Disclosure and Case Attachment Integrity Compromise
core-osv · Original sourcePublished 21 Jul 2026, 20:14 UTC
Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized information disclosure and case attachment integrity compromise via Privilege Abuse (CAPEC-122). An inconsistency in Kibana's file access authorization logic allows a low-privileged authenticated user to retrieve, modify, and delete case attachments that belong to feature areas they are not authorized to access. Because the access control check and the resource retrieval use different resolution mechanisms, an authenticated attacker with limited file management permissions can obtain the contents of, modify, or delete protected case attachments — such as those associated with Security Solution cases — without holding the privileges required to access those features.
osv:CVE-2026-56147
Complete source record
{
"id": "de55917d4d311e55bbeb2827eca061d79526b446d48ea2fb06748f8d32ed520a",
"url": "https://osv.dev/vulnerability/CVE-2026-56147",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Authorization Bypass Through User-Controlled Key in Kibana Leading to Unauthorized Information Disclosure and Case Attachment Integrity Compromise",
"summary": "Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized information disclosure and case attachment integrity compromise via Privilege Abuse (CAPEC-122). An inconsistency in Kibana's file access authorization logic allows a low-privileged authenticated user to retrieve, modify, and delete case attachments that belong to feature areas they are not authorized to access. Because the access control check and the resource retrieval use different resolution mechanisms, an authenticated attacker with limited file management permissions can obtain the contents of, modify, or delete protected case attachments — such as those associated with Security Solution cases — without holding the privileges required to access those features.",
"evidence": "osv:CVE-2026-56147",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-56147",
"aliases": [
"BIT-elk-2026-56147",
"BIT-kibana-2026-56147",
"CVE-2026-56147"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/elastic/elasticsearch",
"type": "GIT",
"events": [
{
"introduced": "93788a8c2882eb5b606510680fac214cff1c7a22"
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{
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{
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{
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{
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},
{
"fixed": "45f6a06b1b441b41fe711059b8720013173e7c89"
}
],
"database_specific": {
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{
"cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
"range": [
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},
{
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}
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{
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{
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},
{
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],
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}
]
}
}
],
"versions": [
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"v8.19.16",
"v9.4.2",
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"v9.4.1",
"v9.4.0",
"v8.19.15",
"v9.3.4",
"v8.19.14",
"v9.3.3",
"v9.3.2",
"v8.19.13",
"v9.3.1",
"v8.19.12",
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"v8.19.10",
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"v8.19.5",
"v8.19.4",
"v8.19.3",
"v8.19.2",
"v8.19.1",
"v8.19.0"
],
"database_specific": {
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}
},
{
"ranges": [
{
"repo": "https://github.com/elastic/kibana",
"type": "GIT",
"events": [
{
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{
"fixed": "8b2d519956d8e256d1da1a46185994fee710c3b8"
},
{
"introduced": "30ab63cc0017fe2da7a84fb9b285dd762468802d"
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{
"fixed": "36e00282a99d328a291ef2eefb94fe83b741dd19"
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{
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},
{
"fixed": "9e9848d35f973e1f40f65d79760037228c54b7ab"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "8.19.0"
},
{
"fixed": "8.19.18"
}
],
"source": "CPE_RANGE"
},
{
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{
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},
{
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{
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}
],
"versions": [
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"v8.19.17",
"v9.4.2",
"v8.19.16",
"v9.3.5",
"v9.4.1",
"v9.3.4",
"v9.4.0",
"v8.19.15",
"v8.19.14",
"v9.3.3",
"v9.3.2",
"v8.19.13",
"v8.19.12",
"v9.3.1",
"v9.3.0",
"v8.19.11",
"v8.19.10",
"v8.19.9",
"v8.19.8",
"v8.19.7",
"v8.19.6",
"v8.19.5",
"v8.19.4",
"v8.19.3",
"v8.19.2",
"v8.19.1",
"v8.19.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56147.json"
}
}
],
"modified": "2026-10-28T02:30:48.630027037Z",
"provider": "osv",
"references": [
"https://discuss.elastic.co/t/kibana-8-19-18-9-3-7-9-4-3-security-update-esa-2026-59/388558",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56147.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56147"
],
"provider_metadata": {
"cwe_ids": [
"CWE-639"
],
"cna_assigner": "elastic",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "9.0.0"
},
{
"last_affected": "9.3.6"
},
{
"introduced": "9.4.0"
},
{
"last_affected": "9.4.2"
},
{
"introduced": "8.7.0"
},
{
"last_affected": "8.19.17"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56147.json"
}
},
"related_cves": [
{
"value": "CVE-2026-56147",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 517090,
"published_at": "2026-07-21T20:14:59.75+00:00"
}