RabbitMQ Java client ValueReader: Unbounded recursive table/array nesting causes StackOverflowError DoS
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-674.
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 permits ValueReader.readTable and ValueReader.readArray to call ValueReader.readFieldValue recursively for AMQP table type F and AMQP array type A values without a nesting-depth limit. A malicious AMQP server or network intermediary can send approximately 580 nested table levels in the pre-authentication connection.start frame, fitting within the default 131072-byte frame maximum, to trigger StackOverflowError. The error terminates the client input processing thread and causes denial of service. This issue is fixed in version 5.33.1.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| rabbitmq | rabbitmq-java-client | before 5.33.1 | 5.33.1 | Patch available | CNA |
| — | com.rabbitmq:amqp-client (Maven) | before 5.33.1 | 5.33.1 | Patch available | GHSA-93j5-89vc-pph4 |
- rabbitmq-java-client Vendorrabbitmq Affected before 5.33.1 Fixed in 5.33.1 Patch available CNA
- com.rabbitmq:amqp-client (Maven) Vendor— Affected before 5.33.1 Fixed in 5.33.1 Patch available GHSA-93j5-89vc-pph4
Remediation
- Fix · CNA rabbitmq-java-client (rabbitmq) Fixed in 5.33.1
- Fix · GHSA-93j5-89vc-pph4 com.rabbitmq:amqp-client (Maven) Fixed in 5.33.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-69220
- 2026-10-03 Alias added: GHSA-93j5-89vc-pph4
References
Other 7
- https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-93j5-89vc-pph4
- https://github.com/rabbitmq/rabbitmq-java-client/pull/2007
- https://github.com/rabbitmq/rabbitmq-java-client/pull/2008
- https://github.com/rabbitmq/rabbitmq-java-client/commit/09af76fce136f3136931654a0a1d43095c80e2f0
- https://github.com/rabbitmq/rabbitmq-java-client/commit/db89e34809fbc6ba4e946615f297f3684ccd0acc
- https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.33.1
- https://github.com/rabbitmq/rabbitmq-java-client
More rabbitmq vulnerabilities
- TI-2026-41154 Improper authentication in rabbitmq-server CVSS 3.1CRITICAL 10.0
- TI-2026-41149 RabbitMQ: UNC SSRF affecting the management UI on Windows CVSS 3.1CRITICAL 10.0
- TI-2026-41158 Resource allocation without limits in rabbitmq-server CVSS 3.1HIGH 7.5
- TI-2026-47695 RabbitMQ: OAuth2 Client Secret Exposed via Unauthenticated JavaScript Endpoint CVSS 4.0HIGH 8.2
- TI-2026-47694 RabbitMQ: JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Authentication DoS CVSS 4.0HIGH 8.2
- TI-2026-45167 RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading CVSS 4.0HIGH 7.5
Sources
- CVE-2026-69220 · CVE Program
- CVE-2026-69220 · NVD
- FIRST EPSS
- GHSA-93j5-89vc-pph4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences