CVE-2026-44945 (GCVE-0-2026-44945)
Vulnerability from cvelistv5
Published
2026-08-05 10:00
Modified
2026-08-06 03:55
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A privilege escalation vulnerability exists in Rancher's impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated Rancher user with the default user
global role can gain full administrative access to the Rancher control
plane and transitively to all downstream clusters it manages.
This issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2.
References
| URL | Tags | |
|---|---|---|
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-44945",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-05T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-06T03:55:24.710Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"packageName": "Rancher",
"product": "Rancher",
"repo": "https://github.com/rancher/rancher",
"vendor": "SUSE",
"versions": [
{
"changes": [
{
"at": "2.11.16",
"status": "unaffected"
}
],
"lessThan": "2.11.16",
"status": "affected",
"version": "2.11.0",
"versionType": "semver"
},
{
"changes": [
{
"at": "2.12.12",
"status": "unaffected"
}
],
"lessThan": "2.12.12",
"status": "affected",
"version": "2.12.0",
"versionType": "semver"
},
{
"changes": [
{
"at": "2.13.8",
"status": "unaffected"
}
],
"lessThan": "2.13.8",
"status": "affected",
"version": "2.13.0",
"versionType": "semver"
},
{
"changes": [
{
"at": "2.14.4",
"status": "unaffected"
}
],
"lessThan": "2.14.2",
"status": "affected",
"version": "2.14.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "This vulnerability was discovered and reported by @BenTheCyberOne."
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "A privilege escalation vulnerability exists in Rancher\u0027s impersonation middleware (\u003ccode\u003epkg/auth/requests/impersonate.go\u003c/code\u003e). An authenticated Rancher user with the default \u003ccode\u003euser\u003c/code\u003e\n global role can gain full administrative access to the Rancher control \nplane and transitively to all downstream clusters it manages.\u003cp\u003eThis issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2.\u003c/p\u003e"
}
],
"value": "A privilege escalation vulnerability exists in Rancher\u0027s impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated Rancher user with the default user\n global role can gain full administrative access to the Rancher control \nplane and transitively to all downstream clusters it manages.\n\nThis issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-441",
"description": "CWE-441: Unintended Proxy or Intermediary (\u0027Confused Deputy\u0027)",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-497",
"description": "CWE-497 Exposure of sensitive system information to an unauthorized control sphere",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T10:00:04.286Z",
"orgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
"shortName": "suse"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/rancher/rancher/pull/55983"
},
{
"tags": [
"vendor-advisory"
],
"url": "https://github.com/rancher/rancher/security/advisories/GHSA-v584-7w32-jwpq"
},
{
"tags": [
"issue-tracking"
],
"url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-44945"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Cross-Cluster Impersonation Confused-Deputy Privilege Escalation",
"x_generator": {
"engine": "Vulnogram 1.0.4"
}
}
},
"cveMetadata": {
"assignerOrgId": "404e59f5-483d-4b8a-8e7a-e67604dd8afb",
"assignerShortName": "suse",
"cveId": "CVE-2026-44945",
"datePublished": "2026-08-05T10:00:04.286Z",
"dateReserved": "2026-05-08T12:29:48.968Z",
"dateUpdated": "2026-08-06T03:55:24.710Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-44945\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-05T13:07:55.384590Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-05T13:08:20.334Z\"}}], \"cna\": {\"title\": \"Cross-Cluster Impersonation Confused-Deputy Privilege Escalation\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"This vulnerability was discovered and reported by @BenTheCyberOne.\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 9.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"repo\": \"https://github.com/rancher/rancher\", \"vendor\": \"SUSE\", \"product\": \"Rancher\", \"versions\": [{\"status\": \"affected\", \"changes\": [{\"at\": \"2.11.16\", \"status\": \"unaffected\"}], \"version\": \"2.11.0\", \"lessThan\": \"2.11.16\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"changes\": [{\"at\": \"2.12.12\", \"status\": \"unaffected\"}], \"version\": \"2.12.0\", \"lessThan\": \"2.12.12\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"changes\": [{\"at\": \"2.13.8\", \"status\": \"unaffected\"}], \"version\": \"2.13.0\", \"lessThan\": \"2.13.8\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"changes\": [{\"at\": \"2.14.4\", \"status\": \"unaffected\"}], \"version\": \"2.14.0\", \"lessThan\": \"2.14.2\", \"versionType\": \"semver\"}], \"packageName\": \"Rancher\", \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://github.com/rancher/rancher/pull/55983\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/rancher/rancher/security/advisories/GHSA-v584-7w32-jwpq\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-44945\", \"tags\": [\"issue-tracking\"]}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.4\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A privilege escalation vulnerability exists in Rancher\u0027s impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated Rancher user with the default user\\n global role can gain full administrative access to the Rancher control \\nplane and transitively to all downstream clusters it manages.\\n\\nThis issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"A privilege escalation vulnerability exists in Rancher\u0027s impersonation middleware (\u003ccode\u003epkg/auth/requests/impersonate.go\u003c/code\u003e). An authenticated Rancher user with the default \u003ccode\u003euser\u003c/code\u003e\\n global role can gain full administrative access to the Rancher control \\nplane and transitively to all downstream clusters it manages.\u003cp\u003eThis issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2.\u003c/p\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-441\", \"description\": \"CWE-441: Unintended Proxy or Intermediary (\u0027Confused Deputy\u0027)\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-497\", \"description\": \"CWE-497 Exposure of sensitive system information to an unauthorized control sphere\"}]}], \"providerMetadata\": {\"orgId\": \"404e59f5-483d-4b8a-8e7a-e67604dd8afb\", \"shortName\": \"suse\", \"dateUpdated\": \"2026-08-05T10:00:04.286Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-44945\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-06T03:55:24.710Z\", \"dateReserved\": \"2026-05-08T12:29:48.968Z\", \"assignerOrgId\": \"404e59f5-483d-4b8a-8e7a-e67604dd8afb\", \"datePublished\": \"2026-08-05T10:00:04.286Z\", \"assignerShortName\": \"suse\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…