[NEW] [medium] RabbitMQ Java Client: Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in RabbitMQ Java Client to execute code, bypass security mechanisms and cause a denial of service.
CSIRTS triage
- What
- Multiple vulnerabilities in RabbitMQ Java Client enable code execution, security mechanism bypass, and denial of service.
- Who is affected
- Applications using the vulnerable versions of RabbitMQ Java Client.
- Urgency
- Medium severity; provides multiple attack vectors for code execution and bypass attacks.
- Action
- Update RabbitMQ Java Client to the patched version addressing CVE-2026-61634, CVE-2026-63335, CVE-2026-63336, CVE-2026-63337, CVE-2026-69219, and CVE-2026-69220.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2921
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-616340.30% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-633350.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-633360.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-633370.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-692190.42% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 35% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-692200.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 33% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-61634 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-63335 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-63336 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-63337 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-69219 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-69220 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownCVE-2026-69220: The RabbitMQ Java client library allows Java and JVM-based applications to connect to and inte…nvd
- unknownCVE-2026-69219: The RabbitMQ Java client library allows Java and JVM-based applications to connect to and inte…nvd
- unknownCVE-2026-63337: The RabbitMQ Java client library allows Java and JVM-based applications to connect to and inte…nvd
- unknownCVE-2026-63336: The RabbitMQ Java client library allows Java and JVM-based applications to connect to and inte…nvd
- unknownCVE-2026-63335: The RabbitMQ Java client library allows Java and JVM-based applications to connect to and inte…nvd
- unknownCVE-2026-61634: The RabbitMQ Java client library allows Java and JVM-based applications to connect to and inte…nvd
- lowGHSA-5xwg-cfvj-gff5: RabbitMQ Java client accepts broker frames larger than the negotiated AMQP frame_maxghsa
- mediumGHSA-5m9f-rphj-c435: RabbitMQ Java client: TrustEverythingTrustManager used by default in useSslProtocol() ena…ghsa
- mediumGHSA-qx7j-jv8m-fppr: RabbitMQ Java client malformed body frame triggers raw command assembler exceptionghsa
- highGHSA-6g32-pxv4-2wfj: RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables …ghsa
- highGHSA-68mj-5wr7-6fgg: RabbitMQ Java client ValueReader: Oversized LongString/bytes length triggers OOM via unch…ghsa
- highGHSA-93j5-89vc-pph4: RabbitMQ Java client ValueReader: Unbounded recursive table/array nesting causes StackOve…ghsa
Recent advisories for RabbitMQ Java Client
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- unknownCVE-2026-69220: The RabbitMQ Java client library allows Java and JVM-based applications to connect to and inte…nvd · 2026-08-18
- unknownCVE-2026-69219: The RabbitMQ Java client library allows Java and JVM-based applications to connect to and inte…nvd · 2026-08-18
- unknownCVE-2026-63337: The RabbitMQ Java client library allows Java and JVM-based applications to connect to and inte…nvd · 2026-08-18
- unknownCVE-2026-63336: The RabbitMQ Java client library allows Java and JVM-based applications to connect to and inte…nvd · 2026-08-18
- unknownCVE-2026-63335: The RabbitMQ Java client library allows Java and JVM-based applications to connect to and inte…nvd · 2026-08-18
- unknownCVE-2026-61634: The RabbitMQ Java client library allows Java and JVM-based applications to connect to and inte…nvd · 2026-08-18
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