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 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java uses ValueReader.readBytes to accept a wire-declared contentLength below Integer.MAX_VALUE and allocate a byte array before checking the bytes available in the frame. A malicious AMQP peer can send a LongString or byte-array field with type tag S and a declared length such as 0x7FFFFFFE during the pre-authentication connection.start server-properties table, causing an approximately 2 GB allocation and OutOfMemoryError before readFully consumes data. The resulting memory exhaustion can terminate the JVM and cause denial of service. This issue is fixed in version 5.33.1.
- Products
- rabbitmq-java-client
- Affected versions
- 5.0.0-1, 5.0.0-1.1, 5.0.0-2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-69219
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:51 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 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java uses ValueReader.readBytes to accept a wire-declared contentLength below Integer.MAX_VALUE and allocate a byte array before checking the bytes available in the frame. A malicious AMQP peer can send a LongString or byte-array field with type tag S and a declared length such as 0x7FFFFFFE during the pre-authentication connection.start server-properties table, causing an approximately 2 GB allocation and OutOfMemoryError before readFully consumes data. The resulting memory exhaustion can terminate the JVM and cause denial of service. This issue is fixed in version 5.33.1.
osv:UBUNTU-CVE-2026-69219
rabbitmq-java-client
Fixed versions: Not specified
rabbitmq-java-client
Fixed versions: Not specified
rabbitmq-java-client
Fixed versions: Not specified
rabbitmq-java-client
Fixed versions: Not specified
rabbitmq-java-client
Fixed versions: Not specified
rabbitmq-java-client
Fixed versions: Not specified
Complete source record
{
"id": "62dbde9f79aa275f9e5c3ceee2cade220cc3a1fdfe40a99b7c578505150928bd",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-69219",
"method": "structured",
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"title": "UBUNTU-CVE-2026-69219",
"summary": "The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java uses ValueReader.readBytes to accept a wire-declared contentLength below Integer.MAX_VALUE and allocate a byte array before checking the bytes available in the frame. A malicious AMQP peer can send a LongString or byte-array field with type tag S and a declared length such as 0x7FFFFFFE during the pre-authentication connection.start server-properties table, causing an approximately 2 GB allocation and OutOfMemoryError before readFully consumes data. The resulting memory exhaustion can terminate the JVM and cause denial of service. This issue is fixed in version 5.33.1.",
"evidence": "osv:UBUNTU-CVE-2026-69219",
"products": [
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"aliases": [
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{
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],
"modified": "2026-10-17T12:59:29.199681042Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-69219",
"https://www.cve.org/CVERecord?id=CVE-2026-69219"
]
},
"related_cves": [
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},
"source_id": "core-osv",
"document_id": 359666,
"published_at": "2026-08-18T17:17:00+00:00"
}