{"id":"CVE-2026-61634","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-61634","generatedAt":"2026-10-28T04:31:59.180Z","title":"The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes.","description":"The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.0, the AMQP connection tuning path records the negotiated AMQP frame_max value, but src/main/java/com/rabbitmq/client/impl/SocketFrameHandler.java and NettyFrameHandlerFactory continue to validate broker-controlled frame payload lengths against maxInboundMessageBodySize because the negotiated limit is not applied consistently through setMaxInboundFramePayloadSize. A malicious or compromised broker can send a method frame larger than the negotiated frame_max during or after connection establishment, causing the client to allocate and decode a protocol-invalid frame instead of rejecting it with MalformedFrameException. The protocol violation can disrupt the affected connection and cause client-side denial of service. This issue is fixed in version 5.33.0.","published":"2026-08-18T17:17:00.000Z","lastModified":"2026-10-22T22:10:00.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":0,"severity":"NONE","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/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/M"},"cwe":["CWE-20"],"affected":[],"epss":{"score":0.00488,"percentile":0.41822,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.49%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/rabbitmq/rabbitmq-java-client/commit/08790f09686173eb17b48d08a25edcb32e71a591","source":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/rabbitmq-java-client/commit/b491075f42e89967610c40beded68d3680cfd472","source":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/rabbitmq-java-client/pull/1994","source":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/rabbitmq-java-client/pull/1995","source":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.33.0","source":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-5xwg-cfvj-gff5","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-61634","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}