Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
11 results
Oct 6, 2026The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes.CVE-2026-106123 · Other software · rabbitmq · reported by GitHubMedium 5.7
The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.35.0, ConnectionFactoryConfigurator.load() includes the raw uri value in wrapped exceptions when AMQP URI parsing fails. Because the URI may contain a plaintext username and password, startup logs, application performance monitoring systems, CI logs, and copied stack traces can disclose broker credentials to users who should not have access to them. This issue is fixed in version 5.35.0.
- Product
- rabbitmq-java-client
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 6, 2026The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes.CVE-2026-106122 · Other software · rabbitmq · reported by GitHubMedium 6
The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.36.0, ValueReader.readShortstr decodes malformed UTF-8 bytes into replacement characters that can re-encode beyond the AMQP shortstr limit enforced by ValueWriter.writeShortstr. An attacker who can submit an RPC message with a malformed echoed property can cause reply publication in RpcServer.mainloop() or tutorial-style consumers to throw an unchecked exception before acknowledgement. The broker requeues the message, allowing the same message to disable replacement consumers until the queue is purged. This issue is fixed in version 5.36.0.
- Product
- rabbitmq-java-client
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 6, 2026The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes.CVE-2026-106121 · Other software · rabbitmq · reported by GitHubMedium 4.9
The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.37.0, com.rabbitmq.tools.json.JSONReader.read() fails to terminate when input ends inside a quoted string or a line comment because its string and whitespace scanners do not stop at CharacterIterator.DONE. The default DefaultJsonRpcMapper passes JSON-RPC message bodies to this parser for JsonRpcServer and client replies. A truncated string causes the parser to append replacement end markers until heap exhaustion, while a line comment without a terminating newline can keep a thread consuming CPU indefinitely, resulting in denial of service. This issue is fixed in version 5.37.0.
- Product
- rabbitmq-java-client
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 16, 2026The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes.CVE-2026-75516 · Other software · rabbitmq · reported by GitHubHigh 8.7
The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.34.0, AMQConnection.start() applies Math.min(maxInboundMessageBodySize, frameMax) after Connection.Tune negotiation even though AMQP defines frameMax value zero as unlimited and ConnectionFactory.DEFAULT_FRAME_MAX is zero. When the client default and server-negotiated value are both zero, the result is passed to Utils.framePayloadLimit(int), which interprets zero as Integer.MAX_VALUE and disables the configured maxInboundMessageBodySize cap. A malicious AMQP server, or a man-in-the-middle attacker able to modify Connection.Tune and inject frames into the connection, can then send an oversized frame of any frame type, causing Frame.readFrom() to allocate a large byte array before content-level validation and potentially terminate the client process through memory exhaustion. This issue is fixed in version 5.34.0.
- Product
- rabbitmq-java-client
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 18, 2026The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes.CVE-2026-69220 · Other software · rabbitmq · reported by GitHubHigh 8.7
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.
- Product
- rabbitmq-java-client
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 18, 2026The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes.CVE-2026-69219 · Other software · rabbitmq · reported by GitHubHigh 8.7
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 uses ValueReader.readBytes to accept a wire-declared contentLength below Integer.MAX_VALUE and allocate a byte array before checking the bytes available in the frame. A malicious AMQP peer can send a LongString or byte-array field with type tag S and a declared length such as 0x7FFFFFFE during the pre-authentication connection.start server-properties table, causing an approximately 2 GB allocation and OutOfMemoryError before readFully consumes data. The resulting memory exhaustion can terminate the JVM and cause denial of service. This issue is fixed in version 5.33.1.
- Product
- rabbitmq-java-client
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 18, 2026The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes.CVE-2026-63337 · Other software · rabbitmq · reported by GitHubHigh 7.5
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.
- Product
- rabbitmq-java-client
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 18, 2026The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes.CVE-2026-63336 · Other software · rabbitmq · reported by GitHubMedium 5.1
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.client.ConnectionFactory.useSslProtocol() and ConnectionFactory.useSslProtocol(String) configure com.rabbitmq.client.TrustEverythingTrustManager and leave hostname verification disabled, causing arbitrary server certificates, including self-signed certificates, to be accepted. A network attacker able to intercept a TLS connection can impersonate the RabbitMQ broker, read protected AMQP traffic, and modify traffic without certificate or hostname validation. The fix changes the production TLS helpers to use the JVM default trust store and enables hostname verification, while retaining an explicitly named development-only no-verification helper. This issue is fixed in version 5.33.0.
- Product
- rabbitmq-java-client
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 18, 2026The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes.CVE-2026-63335 · Other software · rabbitmq · reported by GitHubMedium 6.3
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.
- Product
- rabbitmq-java-client
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Aug 18, 2026The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes.CVE-2026-61634 · Other software · rabbitmq · reported by GitHubNone
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.
- Product
- rabbitmq-java-client
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 25, 2023The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes.CVE-2023-46120 · Other software · rabbitmq · reported by GitHubMedium 4.9
The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. `maxBodyLebgth` was not used when receiving Message objects. Attackers could send a very large Message causing a memory overflow and triggering an OOM Error. Users of RabbitMQ may suffer from DoS attacks from RabbitMQ Java client which will ultimately exhaust the memory of the consumer. This vulnerability was patched in version 5.18.0.
- Product
- rabbitmq-java-client
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
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