CVE-2026-67237
Full vulnerability record from the local CVENow database.
Description
RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.8 and 4.3.2, set_token_auth/2 inserted a bearer token from the Authorization header or access_token cookie into OAuth bootstrap JavaScript without escaping, allowing attacker-controlled token content to execute JavaScript in the management UI origin. The endpoint is exposed before authentication only when management.oauth_enabled is true, and exploitation through the cookie path additionally requires the attacker to plant an access_token cookie on the management host. This issue is fixed in versions 4.2.8 and 4.3.2.
Severity
HIGH
CVSS score
7.5
(v4.0)
Vulnerability status
Analyzed
Source identifier
Published
2026-09-25 17:17:11.883000
Last modified
2026-10-20 12:56:42.837000
View original CVE JSON
{
"id": "CVE-2026-67237",
"sourceIdentifier": "[email protected]",
"published": "2026-09-25T17:17:11.883",
"lastModified": "2026-10-20T12:56:42.837",
"vulnStatus": "Analyzed",
"cveTags": [],
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"value": "RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.8 and 4.3.2, set_token_auth/2 inserted a bearer token from the Authorization header or access_token cookie into OAuth bootstrap JavaScript without escaping, allowing attacker-controlled token content to execute JavaScript in the management UI origin. The endpoint is exposed before authentication only when management.oauth_enabled is true, and exploitation through the cookie path additionally requires the attacker to plant an access_token cookie on the management host. This issue is fixed in versions 4.2.8 and 4.3.2."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "rabbitmq",
"product": "rabbitmq-server",
"versions": [
{
"version": ">= 4.2.0, < 4.2.8",
"status": "affected"
},
{
"version": ">= 4.3.0, < 4.3.2",
"status": "affected"
}
]
}
]
}
],
"metrics": {
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"source": "[email protected]",
"type": "Secondary",
"cvssData": {
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"baseScore": 7.5,
"baseSeverity": "HIGH",
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"attackRequirements": "PRESENT",
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"vulnIntegrityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
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"modifiedAttackRequirements": "NOT_DEFINED",
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"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
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"cvssMetricV31": [
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"source": "[email protected]",
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"cvssData": {
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"scope": "CHANGED",
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"ssvcV203": [
{
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"id": "CVE-2026-67237",
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"role": "CISA Coordinator",
"version": "2.0.3"
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},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
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"configurations": [
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"nodes": [
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"source": "[email protected]",
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"source": "[email protected]",
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"source": "[email protected]",
"tags": [
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},
{
"url": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-2rf7-f6r6-8rwh",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
}
]
}