{"id":"CVE-2026-63337","aliases":["CLSA-2026-1789206834","CLSA-2026-1791303378","CLSA-2026-1791960546","CLSA-2026-1792591661","CLSA-2026-1792591801","CLSA-2026-1792592134","CLSA-2026-1792592159","CLSA-2026-1792592430","CLSA-2026-1792592628","CLSA-2026-1792593109","CLSA-2026-1792593187","CLSA-2026-1792593410","DEBIAN-CVE-2026-63337","EUVD-2026-61043","GHSA-5m9f-rphj-c435","GHSA-5xwg-cfvj-gff5","GHSA-68mj-5wr7-6fgg","GHSA-6g32-pxv4-2wfj","GHSA-7822-rcf6-97fx","GHSA-93j5-89vc-pph4","GHSA-cqgh-8p3p-mx4m","GHSA-h6w7-qmcm-q6xr","GHSA-qx7j-jv8m-fppr","RHLW-2026-45242cd5d8021673","RHLW-2026-f4441c6bf0c89319","ROOT-APP-MAVEN-CVE-2026-63337","UBUNTU-CVE-2026-63337"],"status":"published","title":"RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading","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, com.rabbitmq.tools.jsonrpc.ProcedureDescription receives a javaReturnType value in an untrusted system.describe response and passes it through JSONUtil.tryFill, setJavaReturnType, and computeReturnTypeAsJavaClass to Class.forName(javaReturnType) with initialization enabled. An attacker able to answer the JsonRpcClient request through a shared broker or network interception can select a class already present in the victim JVM and trigger its static initializer, while JsonRpcClient.java later passes getReturnType output to mapper.parse and may also create type confusion. Successful exploitation can affect confidentiality, integrity, and availability in the client process. This issue is fixed in version 5.33.0.","severity":{"version":"4.0","score":7.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00557,"percentile":0.46907,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-470"],"published":"2026-08-18T16:27:09Z","modified":"2026-11-06T19:30:03Z","fixes":[{"ecosystem":"Maven","package":"com.rabbitmq:amqp-client","fixed_in":["5.33.0"],"sources":["ghsa","osv"]},{"ecosystem":"Root:Maven","package":"com.rabbitmq:amqp-client","fixed_in":["5.30.0-aikido.1","5.25.0-aikido.1","5.25.0-aikido.2","5.27.1-aikido.1","5.27.1-aikido.3","5.27.1-aikido.2","5.30.0-aikido.2"],"sources":["osv"]},{"ecosystem":"Root:Maven","package":"io.root.com.rabbitmq:amqp-client","fixed_in":["5.30.0-root.io.1","5.25.0-root.io.1","5.25.0-root.io.2","5.27.1-root.io.1","5.27.1-root.io.3","5.27.1-root.io.2","5.30.0-root.io.2"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"com.rabbitmq:amqp-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.33.0"}]}]},{"source":"osv","ecosystem":"TuxCare:Maven","package":"com.rabbitmq:amqp-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.21.0"},{"fixed":"5.21.0-tuxcare.1"}]}],"versions":["5.21.0"],"bundled":3},{"source":"osv","ecosystem":"TuxCare:Maven","package":"com.rabbitmq:amqp-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.19.0"},{"fixed":"5.19.0-tuxcare.2"}]}],"versions":["5.19.0","5.19.0-tuxcare.1"],"bundled":4},{"source":"osv","ecosystem":"TuxCare:Maven","package":"com.rabbitmq:amqp-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.20.0"},{"fixed":"5.20.0-tuxcare.1"}]}],"versions":["5.20.0"],"bundled":3},{"source":"osv","ecosystem":"TuxCare:Maven","package":"com.rabbitmq:amqp-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.7.3"},{"fixed":"5.7.3-tuxcare.1"}]}],"versions":["5.7.3"],"bundled":4},{"source":"osv","ecosystem":"TuxCare:Maven","package":"com.rabbitmq:amqp-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.16.1"},{"fixed":"5.16.1-tuxcare.1"}]}],"versions":["5.16.1"],"bundled":4},{"source":"osv","ecosystem":"TuxCare:Maven","package":"com.rabbitmq:amqp-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.18.0"},{"fixed":"5.18.0-tuxcare.1"}]}],"versions":["5.18.0"],"bundled":4},{"source":"osv","ecosystem":"TuxCare:Maven","package":"com.rabbitmq:amqp-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.9.0"},{"fixed":"5.9.0-tuxcare.1"}]}],"versions":["5.9.0"],"bundled":3},{"source":"osv","ecosystem":"TuxCare:Maven","package":"com.rabbitmq:amqp-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.13.1"},{"fixed":"5.13.1-tuxcare.1"}]}],"versions":["5.13.1"],"bundled":3},{"source":"osv","ecosystem":"TuxCare:Maven","package":"com.rabbitmq:amqp-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.14.3"},{"fixed":"5.14.3-tuxcare.1"}]}],"versions":["5.14.3"],"bundled":3},{"source":"osv","ecosystem":"TuxCare:Maven","package":"com.rabbitmq:amqp-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.4.3"},{"fixed":"5.4.3-tuxcare.1"}]}],"versions":["5.4.3"],"bundled":4},{"source":"osv","ecosystem":"TuxCare:Maven","package":"com.rabbitmq:amqp-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.5.3"},{"fixed":"5.5.3-tuxcare.1"}]}],"versions":["5.5.3"],"bundled":4},{"source":"osv","ecosystem":"TuxCare:Maven","package":"com.rabbitmq:amqp-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.5.0-tuxcare.1"}]}],"versions":["5.5.0"],"bundled":2},{"source":"osv","ecosystem":"Debian:12","package":"rabbitmq-java-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.0-1.1","5.0.0-2"]},{"source":"osv","ecosystem":"Debian:13","package":"rabbitmq-java-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.0.0-1.1","5.0.0-2"]},{"source":"osv","ecosystem":"Maven","package":"com.rabbitmq:amqp-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.33.0"}]}],"versions":["1.3.0","1.5.4","1.5.5","1.6.0","1.7.2","1.8.0","1.8.1","2.0.0","2.1.0","2.1.1","2.2.0","2.3.0","2.3.1","2.4.1","2.5.0","2.5.1","2.6.0","2.6.1","2.7.0","2.7.1","2.8.0","2.8.1","2.8.2","2.8.3","2.8.4","2.8.5","2.8.6","2.8.7","3.0.0","3.0.1","3.0.2","3.0.3","3.0.4","3.1.0","3.1.1","3.1.2","3.1.3","3.1.4","3.2.0","3.2.1","3.2.2","3.2.3","3.2.4","3.3.0","3.3.1","3.3.2","3.3.3","3.3.4","3.3.5","3.4.0","3.4.1","3.4.2","3.4.3","3.4.4","3.5.0","3.5.1","3.5.2","3.5.3","3.5.4","3.5.5","3.5.6","3.5.7","3.6.0","3.6.1","3.6.2","3.6.3","3.6.4","3.6.5","3.6.6","4.0.0","4.0.1","4.0.2","4.0.3","4.1.0","4.1.1","4.10.0","4.11.0","4.11.1","4.11.2","4.11.3","4.12.0","4.2.0","4.2.1","4.2.2","4.3.0","4.4.0","4.4.1","4.4.2","4.5.0","4.6.0","4.7.0","4.8.0","4.8.1","4.8.2","4.8.3"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Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading","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, com.rabbitmq.tools.jsonrpc.ProcedureDescription receives a javaReturnType value in an untrusted system.describe response and passes it through JSONUtil.tryFill, setJavaReturnType, and computeReturnTypeAsJavaClass to Class.forName(javaReturnType) with initialization enabled. An attacker able to answer the JsonRpcClient request through a shared broker or network interception can select a class already present in the victim JVM and trigger its static initializer, while JsonRpcClient.java later passes getReturnType output to mapper.parse and may also create type confusion. Successful exploitation can affect confidentiality, integrity, and availability in the client process. This issue is fixed in version 5.33.0.","status":"published","published":"2026-08-18T16:27:09.782Z","modified":"2026-08-18T19:09:03.371Z","cvss":[{"version":"4.0","score":7.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","level":"high","assessor":"cna"}],"cwes":["CWE-470"],"updated_at":"2026-11-02T14:19:56.284359Z"}],"euvd":[{"id":"EUVD-2026-61043","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, com.rabbitmq.tools.jsonrpc.ProcedureDescription receives a javaReturnType value in an untrusted system.describe response and passes it through JSONUtil.tryFill, setJavaReturnType, and computeReturnTypeAsJavaClass to Class.forName(javaReturnType) with initialization enabled. An attacker able to answer the JsonRpcClient request through a shared broker or network interception can select a class already present in the victim JVM and trigger its static initializer, while JsonRpcClient.java later passes getReturnType output to mapper.parse and may also create type confusion. Successful exploitation can affect confidentiality, integrity, and availability in the client process. This issue is fixed in version 5.33.0.","status":"published","published":"2026-08-18T16:27:09Z","modified":"2026-08-18T19:09:03Z","cvss":[{"version":"4.0","score":7.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","level":"high"}],"updated_at":"2026-11-02T18:01:46.060074Z"}],"ghsa":[{"id":"GHSA-6g32-pxv4-2wfj","title":"RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading","description":"The JSON-RPC tools in `com.rabbitmq.tools.jsonrpc` perform `Class.forName(javaReturnType)` with `initialize=true` on class names received from untrusted AMQP messages, without any validation or allowlist.\n\n**Vulnerable code** (`ProcedureDescription.java:101-127`):\nWhen a `JsonRpcClient` connects, it calls `system.describe` and receives a service description from the AMQP queue. The response JSON includes `javaReturnType` fields that are reflectively set via `JSONUtil.tryFill()`, triggering `setJavaReturnType()` → `computeReturnTypeAsJavaClass()` → `Class.forName(javaReturnType)`.\n\n**Attack scenario:**\n1. Victim uses `JsonRpcClient` to connect to a JSON-RPC service via RabbitMQ\n2. Attacker (co-tenant on shared broker, or MITM) intercepts the `system.describe` request\n3. Attacker responds with crafted `javaReturnType` values\n4. Victim's client calls `Class.forName(attackerInput)` with default `initialize=true`\n5. Static initializers of attacker-specified classes execute in victim's JVM\n\nAdditionally, the loaded class from `getReturnType()` is passed to `mapper.parse(replyStr, expectedType)` at `JsonRpcClient.java:168`, potentially enabling type-confusion.\n\n**Recommended fix:** Use `Class.forName(javaReturnType, false, classLoader)` to prevent static initializer execution, or add an allowlist of permitted return types.\n\n**CWE:** CWE-470\n\n---\n\n**Reply from reporter (2026-06-29):** Thanks for the quick turnaround. Fix looks good. Looking forward to the CVE assignment.","status":"published","published":"2026-08-18T16:32:29Z","modified":"2026-08-18T16:32:29Z","cvss":[{"version":"4.0","score":7.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","level":"high"}],"cwes":["CWE-470"],"updated_at":"2026-11-02T14:41:03.602876Z"}],"nvd":[{"id":"CVE-2026-63337","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, com.rabbitmq.tools.jsonrpc.ProcedureDescription receives a javaReturnType value in an untrusted system.describe response and passes it through JSONUtil.tryFill, setJavaReturnType, and computeReturnTypeAsJavaClass to Class.forName(javaReturnType) with initialization enabled. An attacker able to answer the JsonRpcClient request through a shared broker or network interception can select a class already present in the victim JVM and trigger its static initializer, while JsonRpcClient.java later passes getReturnType output to mapper.parse and may also create type confusion. Successful exploitation can affect confidentiality, integrity, and availability in the client process. This issue is fixed in version 5.33.0.","status":"published","published":"2026-08-18T17:17:00.423Z","modified":"2026-10-22T22:10:00.25Z","cvss":[{"version":"4.0","score":7.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/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","level":"high","assessor":"secondary"}],"cwes":["CWE-470"],"updated_at":"2026-11-02T14:12:38.976695Z"}],"osv":[{"id":"CVE-2026-63337","title":"RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading","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, com.rabbitmq.tools.jsonrpc.ProcedureDescription receives a javaReturnType value in an untrusted system.describe response and passes it through JSONUtil.tryFill, setJavaReturnType, and computeReturnTypeAsJavaClass to Class.forName(javaReturnType) with initialization enabled. An attacker able to answer the JsonRpcClient request through a shared broker or network interception can select a class already present in the victim JVM and trigger its static initializer, while JsonRpcClient.java later passes getReturnType output to mapper.parse and may also create type confusion. Successful exploitation can affect confidentiality, integrity, and availability in the client process. This issue is fixed in version 5.33.0.","status":"published","published":"2026-08-18T16:27:09.782Z","modified":"2026-10-28T11:17:02.704945055Z","cvss":[{"version":"4.0","score":7.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","level":"high"}],"cwes":["CWE-470"],"updated_at":"2026-11-02T15:45:13.306117Z"},{"id":"DEBIAN-CVE-2026-63337","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, com.rabbitmq.tools.jsonrpc.ProcedureDescription receives a javaReturnType value in an untrusted system.describe response and passes it through JSONUtil.tryFill, setJavaReturnType, and computeReturnTypeAsJavaClass to Class.forName(javaReturnType) with initialization enabled. An attacker able to answer the JsonRpcClient request through a shared broker or network interception can select a class already present in the victim JVM and trigger its static initializer, while JsonRpcClient.java later passes getReturnType output to mapper.parse and may also create type confusion. Successful exploitation can affect confidentiality, integrity, and availability in the client process. This issue is fixed in version 5.33.0.","status":"published","published":"2026-08-18T17:17:00.423Z","modified":"2026-10-23T17:47:36.881057102Z","cvss":[{"version":"4.0","score":7.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/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","level":"high"}],"updated_at":"2026-11-02T15:45:57.932517Z"},{"id":"GHSA-6g32-pxv4-2wfj","title":"RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading","description":"The JSON-RPC tools in `com.rabbitmq.tools.jsonrpc` perform `Class.forName(javaReturnType)` with `initialize=true` on class names received from untrusted AMQP messages, without any validation or allowlist.\n\n**Vulnerable code** (`ProcedureDescription.java:101-127`):\nWhen a `JsonRpcClient` connects, it calls `system.describe` and receives a service description from the AMQP queue. The response JSON includes `javaReturnType` fields that are reflectively set via `JSONUtil.tryFill()`, triggering `setJavaReturnType()` → `computeReturnTypeAsJavaClass()` → `Class.forName(javaReturnType)`.\n\n**Attack scenario:**\n1. Victim uses `JsonRpcClient` to connect to a JSON-RPC service via RabbitMQ\n2. Attacker (co-tenant on shared broker, or MITM) intercepts the `system.describe` request\n3. Attacker responds with crafted `javaReturnType` values\n4. Victim's client calls `Class.forName(attackerInput)` with default `initialize=true`\n5. Static initializers of attacker-specified classes execute in victim's JVM\n\nAdditionally, the loaded class from `getReturnType()` is passed to `mapper.parse(replyStr, expectedType)` at `JsonRpcClient.java:168`, potentially enabling type-confusion.\n\n**Recommended fix:** Use `Class.forName(javaReturnType, false, classLoader)` to prevent static initializer execution, or add an allowlist of permitted return types.\n\n**CWE:** CWE-470\n\n---\n\n**Reply from reporter (2026-06-29):** Thanks for the quick turnaround. Fix looks good. Looking forward to the CVE assignment.","status":"published","published":"2026-08-18T16:32:29Z","modified":"2026-09-10T03:51:13.214436792Z","cvss":[{"version":"4.0","score":7.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","level":"high"}],"cwes":["CWE-470"],"updated_at":"2026-11-02T15:46:39.618611Z"},{"id":"RHLW-2026-45242cd5d8021673","title":"Lightwell Security Advisory: amqp-client 5.25.0.rhlw-00028","description":"Red Hat Lightwell has released com.rabbitmq:amqp-client 5.25.0.rhlw-00028 with backported fixes for CVE-2026-106121, CVE-2026-106122, CVE-2026-106123, CVE-2026-61634, CVE-2026-63335, CVE-2026-63336, CVE-2026-63337, CVE-2026-69219, and CVE-2026-69220.\n\nCVE-2026-106121: RabbitMQ: JSONReader in the default JSON-RPC mapper never terminates on truncated input, causing DoS\n\nCVE-2026-106122: RabbitMQ: Malformed UTF-8 in shortstr properties permanently disables RPC consumers\n\nCVE-2026-106123: RabbitMQ Java client: plaintext broker credentials leaked in exception message from ConnectionFactoryConfigurator.load()\n\nCVE-2026-61634: RabbitMQ Java client accepts broker frames larger than the negotiated AMQP frame_max\n\nCVE-2026-63335: RabbitMQ Java client malformed body frame triggers raw command assembler exception\n\nCVE-2026-63336: RabbitMQ Java client: TrustEverythingTrustManager used by default in useSslProtocol() enables MITM\n\nCVE-2026-63337: RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading\n\nCVE-2026-69219: RabbitMQ Java client ValueReader: Oversized LongString/bytes length triggers OOM via unchecked allocation\n\nCVE-2026-69220: RabbitMQ Java client ValueReader: Unbounded recursive table/array nesting causes StackOverflowError DoS\n\nThis patched artifact is a drop-in replacement for com.rabbitmq:amqp-client 5.25.0 from Maven Central.","status":"published","published":"2026-11-06T07:10:10Z","modified":"2026-11-06T19:43:09.621680338Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-06T20:08:20.701853Z"},{"id":"RHLW-2026-f4441c6bf0c89319","title":"Lightwell Security Advisory: amqp-client 5.30.0.rhlw-00016","description":"Red Hat Lightwell has released com.rabbitmq:amqp-client 5.30.0.rhlw-00016 with backported fixes for CVE-2026-106121, CVE-2026-106122, CVE-2026-106123, CVE-2026-61634, CVE-2026-63335, CVE-2026-63336, CVE-2026-63337, CVE-2026-69219, and CVE-2026-69220.\n\nCVE-2026-106121: RabbitMQ: JSONReader in the default JSON-RPC mapper never terminates on truncated input, causing DoS\n\nCVE-2026-106122: RabbitMQ: Malformed UTF-8 in shortstr properties permanently disables RPC consumers\n\nCVE-2026-106123: RabbitMQ Java client: plaintext broker credentials leaked in exception message from ConnectionFactoryConfigurator.load()\n\nCVE-2026-61634: RabbitMQ Java client accepts broker frames larger than the negotiated AMQP frame_max\n\nCVE-2026-63335: RabbitMQ Java client malformed body frame triggers raw command assembler exception\n\nCVE-2026-63336: RabbitMQ Java client: TrustEverythingTrustManager used by default in useSslProtocol() enables MITM\n\nCVE-2026-63337: RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading\n\nCVE-2026-69219: RabbitMQ Java client ValueReader: Oversized LongString/bytes length triggers OOM via unchecked allocation\n\nCVE-2026-69220: RabbitMQ Java client ValueReader: Unbounded recursive table/array nesting causes StackOverflowError DoS\n\nThis patched artifact is a drop-in replacement for com.rabbitmq:amqp-client 5.30.0 from Maven Central.","status":"published","published":"2026-11-05T13:47:45Z","modified":"2026-11-06T19:43:11.389328771Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-06T20:08:20.701853Z"},{"id":"UBUNTU-CVE-2026-63337","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, com.rabbitmq.tools.jsonrpc.ProcedureDescription receives a javaReturnType value in an untrusted system.describe response and passes it through JSONUtil.tryFill, setJavaReturnType, and computeReturnTypeAsJavaClass to Class.forName(javaReturnType) with initialization enabled. An attacker able to answer the JsonRpcClient request through a shared broker or network interception can select a class already present in the victim JVM and trigger its static initializer, while JsonRpcClient.java later passes getReturnType output to mapper.parse and may also create type confusion. Successful exploitation can affect confidentiality, integrity, and availability in the client process. This issue is fixed in version 5.33.0.","status":"published","published":"2026-08-18T17:17:00Z","modified":"2026-10-17T13:00:32.266043394Z","cvss":[{"version":"4.0","score":7.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","level":"high"}],"updated_at":"2026-11-02T16:56:43.630667Z"},{"id":"CLSA-2026-1789206834","title":"TuxCare security update for com.rabbitmq:amqp-client (3 CVEs)","description":"TuxCare rebuilt com.rabbitmq:amqp-client to address 3 CVEs. Fixed in 5.21.0-tuxcare.1.","status":"published","published":"2026-09-12T09:53:54Z","modified":"2026-10-15T09:47:26.166974543Z","updated_at":"2026-11-02T15:43:47.938828Z"},{"id":"CLSA-2026-1791303378","title":"TuxCare security update for com.rabbitmq:amqp-client (4 CVEs)","description":"TuxCare rebuilt com.rabbitmq:amqp-client to address 4 CVEs. Fixed in 5.19.0-tuxcare.2.","status":"published","published":"2026-10-06T16:16:18Z","modified":"2026-10-15T09:45:37.601501045Z","updated_at":"2026-11-02T15:43:49.016976Z"},{"id":"CLSA-2026-1791960546","title":"TuxCare security update for com.rabbitmq:amqp-client (3 CVEs)","description":"TuxCare rebuilt com.rabbitmq:amqp-client to address 3 CVEs. Fixed in 5.20.0-tuxcare.1.","status":"published","published":"2026-10-14T06:49:06Z","modified":"2026-10-15T09:45:53.371971858Z","updated_at":"2026-11-02T15:43:50.599064Z"},{"id":"CLSA-2026-1792591661","title":"TuxCare security update for com.rabbitmq:amqp-client (4 CVEs)","description":"TuxCare rebuilt com.rabbitmq:amqp-client to address 4 CVEs. Fixed in 5.7.3-tuxcare.1.","status":"published","published":"2026-10-21T14:07:41Z","modified":"2026-10-21T20:30:04.681834888Z","updated_at":"2026-11-02T15:43:54.672859Z"},{"id":"CLSA-2026-1792591801","title":"TuxCare security update for com.rabbitmq:amqp-client (4 CVEs)","description":"TuxCare rebuilt com.rabbitmq:amqp-client to address 4 CVEs. Fixed in 5.16.1-tuxcare.1.","status":"published","published":"2026-10-21T14:10:01Z","modified":"2026-10-21T20:30:03.214905757Z","updated_at":"2026-11-02T15:43:54.672859Z"},{"id":"CLSA-2026-1792592134","title":"TuxCare security update for com.rabbitmq:amqp-client (4 CVEs)","description":"TuxCare rebuilt com.rabbitmq:amqp-client to address 4 CVEs. Fixed in 5.18.0-tuxcare.1.","status":"published","published":"2026-10-21T14:15:34Z","modified":"2026-10-21T20:30:03.720716971Z","updated_at":"2026-11-02T15:43:54.672859Z"},{"id":"CLSA-2026-1792592159","title":"TuxCare security update for com.rabbitmq:amqp-client (3 CVEs)","description":"TuxCare rebuilt com.rabbitmq:amqp-client to address 3 CVEs. Fixed in 5.9.0-tuxcare.1.","status":"published","published":"2026-10-21T14:15:59Z","modified":"2026-10-21T20:30:04.619050372Z","updated_at":"2026-11-02T15:43:54.672859Z"},{"id":"CLSA-2026-1792592430","title":"TuxCare security update for com.rabbitmq:amqp-client (3 CVEs)","description":"TuxCare rebuilt com.rabbitmq:amqp-client to address 3 CVEs. Fixed in 5.13.1-tuxcare.1.","status":"published","published":"2026-10-21T14:20:30Z","modified":"2026-10-21T20:30:03.828647678Z","updated_at":"2026-11-02T15:43:54.672859Z"},{"id":"CLSA-2026-1792592628","title":"TuxCare security update for com.rabbitmq:amqp-client (3 CVEs)","description":"TuxCare rebuilt com.rabbitmq:amqp-client to address 3 CVEs. Fixed in 5.14.3-tuxcare.1.","status":"published","published":"2026-10-21T14:23:48Z","modified":"2026-10-21T20:30:06.171486267Z","updated_at":"2026-11-02T15:43:54.672859Z"},{"id":"CLSA-2026-1792593109","title":"TuxCare security update for com.rabbitmq:amqp-client (4 CVEs)","description":"TuxCare rebuilt com.rabbitmq:amqp-client to address 4 CVEs. Fixed in 5.4.3-tuxcare.1.","status":"published","published":"2026-10-21T14:31:49Z","modified":"2026-10-27T13:43:05.695750304Z","updated_at":"2026-11-02T15:43:54.672859Z"},{"id":"CLSA-2026-1792593187","title":"TuxCare security update for com.rabbitmq:amqp-client (4 CVEs)","description":"TuxCare rebuilt com.rabbitmq:amqp-client to address 4 CVEs. Fixed in 5.5.3-tuxcare.1.","status":"published","published":"2026-10-21T14:33:07Z","modified":"2026-10-27T13:43:10.368637201Z","updated_at":"2026-11-02T15:43:54.672859Z"},{"id":"CLSA-2026-1792593410","title":"TuxCare security update for com.rabbitmq:amqp-client (2 CVEs)","description":"TuxCare rebuilt com.rabbitmq:amqp-client to address 2 CVEs. Fixed in 5.5.0-tuxcare.1.","status":"published","published":"2026-10-21T14:36:50Z","modified":"2026-10-21T20:30:04.176940711Z","updated_at":"2026-11-02T15:43:54.672859Z"},{"id":"ROOT-APP-MAVEN-CVE-2026-63337","title":"CVE-2026-63337 in com.rabbitmq:amqp-client - Patched by Root","description":"Root has patched CVE-2026-63337 in the com.rabbitmq:amqp-client package for Root:Maven. Multiple fixed versions available.","status":"published","published":"2026-10-13T12:14:22Z","modified":"2026-10-13T13:15:03.17189859Z","updated_at":"2026-11-02T15:53:27.066589Z"}]}}