RabbitMQ Java client malformed body frame triggers raw command assembler exception (rabbitmq rabbitmq-java-client)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.52 % · percentile 44 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Awaiting Analysis
Description
The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.31.0, inbound AMQP command assembly in src/main/java/com/rabbitmq/client/impl/CommandAssembler.java processes a content-bearing method and header whose remainingBodyBytes value is smaller than a following AMQP.FRAME_BODY payload. CommandAssembler.consumeBodyFrame subtracts the peer-controlled payload length before validating that it fits, drives remainingBodyBytes negative, and throws a raw UnsupportedOperationException instead of MalformedFrameException. A malicious or compromised broker peer can send this malformed sequence on an open nonzero channel to terminate frame processing and close the client connection, causing denial of service for work using that connection. This issue is fixed in version 5.31.0.
Weaknesses (CWE)
- CWE-20 — Improper Input Validation
References
- https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-qx7j-jv8m-fppr
- https://github.com/rabbitmq/rabbitmq-java-client/pull/1959
- https://github.com/rabbitmq/rabbitmq-java-client/pull/1960
- https://github.com/rabbitmq/rabbitmq-java-client/commit/31735344d9f9dfc53740b67f06e560e8846b9322
- https://github.com/rabbitmq/rabbitmq-java-client/commit/abd6d60d4e2bfc1a327dc90ab246b2e8aca1f33b
- https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.31.0
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | MEDIUM 6.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H | GitHub_M |
| CVSS 4.0 | MEDIUM 6.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H/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 | NVD · security-advisories@github.com (Secondary) |
Advisories
- GHSA-qx7j-jv8m-fppr — RabbitMQ Java client malformed body frame triggers raw command assembler exception
European references
- ENISA EUVD · EUVD-2026-61040
- GCVE · GCVE-0-2026-63335
Affected products
| Product | Versions |
|---|---|
| rabbitmq · rabbitmq-java-client | affected < 5.31.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |