rabbitmq-java-client — security advisory
The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.37.0, com.rabbitmq.tools.json.JSONReader.read() fails to terminate when input ends inside a quoted string or a line comment because its string and whitespace scanners do not stop at CharacterIterator.DONE. The default DefaultJsonRpcMapper passes JSON-RPC message bodies to this parser for JsonRpcServer and client replies. A truncated string causes the parser to append replacement end markers until heap exhaustion, while a line comment without a terminating newline can keep a thread consuming CPU indefinitely, resulting in denial of service. This issue is fixed in version 5.37.0.
- Products
- rabbitmq-java-client
- Affected versions
- 5.0.0-1.1, 5.0.0-2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-106121
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 29 Oct 2026, 07:15 UTC · Revision 1
Source evidence
The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.37.0, com.rabbitmq.tools.json.JSONReader.read() fails to terminate when input ends inside a quoted string or a line comment because its string and whitespace scanners do not stop at CharacterIterator.DONE. The default DefaultJsonRpcMapper passes JSON-RPC message bodies to this parser for JsonRpcServer and client replies. A truncated string causes the parser to append replacement end markers until heap exhaustion, while a line comment without a terminating newline can keep a thread consuming CPU indefinitely, resulting in denial of service. This issue is fixed in version 5.37.0.
osv:DEBIAN-CVE-2026-106121
rabbitmq-java-client
Fixed versions: Not specified
rabbitmq-java-client
Fixed versions: Not specified
Complete source record
{
"id": "ad2b53d7029e68ab0db83309724c1eb1f8f661df14f9e92a0596f53d9a1afca1",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-106121",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-106121",
"summary": "The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.37.0, com.rabbitmq.tools.json.JSONReader.read() fails to terminate when input ends inside a quoted string or a line comment because its string and whitespace scanners do not stop at CharacterIterator.DONE. The default DefaultJsonRpcMapper passes JSON-RPC message bodies to this parser for JsonRpcServer and client replies. A truncated string causes the parser to append replacement end markers until heap exhaustion, while a line comment without a terminating newline can keep a thread consuming CPU indefinitely, resulting in denial of service. This issue is fixed in version 5.37.0.",
"evidence": "osv:DEBIAN-CVE-2026-106121",
"products": [
{
"name": {
"value": "rabbitmq-java-client",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.0.0-1.1",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.0-2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "rabbitmq-java-client",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.0.0-1.1",
"evidence": "/affected/1/versions"
},
{
"value": "5.0.0-2",
"evidence": "/affected/1/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2026-106121",
"aliases": [
"DEBIAN-CVE-2026-106121"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rabbitmq-java-client",
"purl": "pkg:deb/debian/rabbitmq-java-client?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"5.0.0-1.1",
"5.0.0-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-106121.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "rabbitmq-java-client",
"purl": "pkg:deb/debian/rabbitmq-java-client?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"5.0.0-1.1",
"5.0.0-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-106121.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-10T10:00:14.472521845Z",
"provider": "osv",
"upstream": [
"CVE-2026-106121"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-106121"
]
},
"related_cves": [
{
"value": "CVE-2026-106121",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 228595,
"published_at": "2026-10-06T19:17:43.193+00:00"
}