EUVD-2026-61042
GHSA-93j5-89vc-pph4
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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
Network vector but high complexity because attacker must control or intercept the AMQP server endpoint; no confidentiality or integrity impact.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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
Lifecycle Timeline
4Blast Radius
ecosystem impact- 3 maven packages depend on com.rabbitmq:amqp-client (2 direct, 1 indirect)
Ecosystem-wide dependent count for version 5.33.1.
DescriptionCVE.org
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.
Articles & Coverage 2
AnalysisAI
Unbounded mutual recursion in the RabbitMQ Java client library (amqp-client <= 5.33.0) allows a malicious AMQP server or network intermediary to crash the client JVM before authentication completes. By sending approximately 580 levels of nested AMQP table structures within a single connection.start frame - well within the default 131,072-byte frame limit - an attacker triggers a StackOverflowError that kills the client's I/O processing thread, resulting in denial of service. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the connecting client use the RabbitMQ Java client library (com.rabbitmq:amqp-client) at version 5.33.0 or earlier. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N/VA:H) scores 8.7, reflecting network-reachable, zero-complexity, unauthenticated exploitation with high availability impact - consistent with the technical description. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker operating a rogue AMQP server - or positioned as a network intermediary capable of intercepting unencrypted AMQP traffic - accepts an inbound connection from a vulnerable client application. Before the client can authenticate, the attacker responds with a crafted connection.start frame containing approximately 580 levels of nested AMQP tables, totaling roughly 4,060 bytes, well within the protocol's 131,072-byte frame limit. … |
| Remediation | Upgrade com.rabbitmq:amqp-client to version 5.33.1 or later; this is the vendor-released patch confirmed by the tagged release at https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.33.1. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit all Java applications and build systems to identify usage of amqp-client library version 5.33.0 or earlier; document inventory by criticality and business function. …
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External POC / Exploit Code
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