CVE-2026-10143 kafka-python prior to 2.3.2 DoS via SCRAM Iteration Count in scram.py

kafka-python prior to 2.3.2 contains a denial-of-service vulnerability in SCRAM authentication handling that allows a malicious or machine-in-the-middle broker to freeze the client event loop by supplying an excessively large iteration count. In scram.py, ScramClient.processserverfirstmessage...

CVE-2026-10143

kafka-python prior to 2.3.2 contains a denial-of-service vulnerability in SCRAM authentication handling that allows a malicious or machine-in-the-middle broker to freeze the client event loop by supplying an excessively large iteration count. In scram.py, ScramClient.processserverfirstmessage...

Unchecked Input for Loop Condition

Overview kafka-python is a Pure Python client for Apache Kafka Affected versions of this package are vulnerable to Unchecked Input for Loop Condition in the SCRAM authentication handling. An attacker can cause the client's event loop to freeze by supplying an excessively large iteration count...

CVE-2026-10143 kafka-python prior to 2.3.2 DoS via SCRAM Iteration Count in scram.py

kafka-python prior to 2.3.2 contains a denial-of-service vulnerability in SCRAM authentication handling that allows a malicious or machine-in-the-middle broker to freeze the client event loop by supplying an excessively large iteration count. In scram.py, ScramClient.processserverfirstmessage...

CVE-2026-10142 kafka-python prior to 2.3.2 Denial of Service via Protocol Parser Frame Length

kafka-python prior to 2.3.2 contains a denial-of-service vulnerability in the protocol parser that allows a malicious broker or machine-in-the-middle attacker to exhaust memory or hang connections by sending a crafted 4-byte frame length value without bounds validation. Attackers can send a...

CVE-2026-10142 kafka-python prior to 2.3.2 Denial of Service via Protocol Parser Frame Length

kafka-python prior to 2.3.2 contains a denial-of-service vulnerability in the protocol parser that allows a malicious broker or machine-in-the-middle attacker to exhaust memory or hang connections by sending a crafted 4-byte frame length value without bounds validation. Attackers can send a...

CVE-2026-10142 kafka-python prior to 2.3.2 Denial of Service via Protocol Parser Frame Length

kafka-python prior to 2.3.2 contains a denial-of-service vulnerability in the protocol parser that allows a malicious broker or machine-in-the-middle attacker to exhaust memory or hang connections by sending a crafted 4-byte frame length value without bounds validation. Attackers can send a...

CVE-2026-10142

CVE-2026-10142 affects kafka-python prior to 2.3.2. The vulnerability resides in the protocol parser, where an attacker can send a crafted 4-byte frame length via receive_bytes() without bounds validation. This can cause a multi-gigabyte memory allocation or an uncaught ValueError, leaving the co...

CVE-2026-10142

kafka-python prior to 2.3.2 contains a denial-of-service vulnerability in the protocol parser that allows a malicious broker or machine-in-the-middle attacker to exhaust memory or hang connections by sending a crafted 4-byte frame length value without bounds validation. Attackers can send a...

Deserialization of Untrusted Data

Overview Affected versions of this package are vulnerable to Deserialization of Untrusted Data via the JsonKafkaHeaderMapper or the deprecated DefaultKafkaHeaderMapper functions. An attacker can achieve arbitrary code execution by supplying crafted header values that trigger deserialization of...

Improper Validation of Specified Quantity in Input

Overview Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input in the retrytopic-attempts header. An attacker can manipulate retry routing and backoff behavior by sending crafted headers with out-of-range attempt counts. Remediation Upgrade...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the DelegatingDeserializer function. An attacker can exhaust system memory by sending records with unique, random spring.kafka.serialization.selector header values, leading to...

EUVD-2026-35908

JsonKafkaHeaderMapper and the deprecated DefaultKafkaHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Combined with Jackson's default bean deserialization, a producer could supply crafted...

GHSA-XVFQ-4Q6Q-GXX7 In Spring for Apache Kafka, unbounded delegate cache keyed on user-controlled, potentially malicious selector header

When an application opts into DelegatingDeserializer, a producer can grow the consumer's heap without bound by sending records with unique random spring.kafka.serialization.selector header values, eventually causing GC thrash and OutOfMemoryError. Affected versions: Spring for Apache Kafka 4.0.0...

GHSA-53W6-V7CV-FC9H Spring for Apache Kafka: Improper Validation of Retry Topic Header Values Leads to Retry Sequence Manipulation

Spring Kafka's retry topic infrastructure did not sufficiently validate user-controlled header values before acting on them. A producer could send a record with a crafted retrytopic-attempts header to supply an out-of-range attempt count and cause the retry topic router to misidentify where the...

Spring for Apache Kafka: Improper Validation of Retry Topic Header Values Leads to Retry Sequence Manipulation

Spring Kafka's retry topic infrastructure did not sufficiently validate user-controlled header values before acting on them. A producer could send a record with a crafted retrytopic-attempts header to supply an out-of-range attempt count and cause the retry topic router to misidentify where the...

In Spring for Apache Kafka, unbounded delegate cache keyed on user-controlled, potentially malicious selector header

When an application opts into DelegatingDeserializer, a producer can grow the consumer's heap without bound by sending records with unique random spring.kafka.serialization.selector header values, eventually causing GC thrash and OutOfMemoryError. Affected versions: Spring for Apache Kafka 4.0.0...

GHSA-XQ69-5H5V-X9X4 In Spring for Apache Kafka, overly broad trusted-package matching in header mappers exposes JDK classes to deserialization

JsonKafkaHeaderMapper and the deprecated DefaultKafkaHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Combined with Jackson's default bean deserialization, a producer could supply crafted...

EUVD-2026-35903

When an application opts into DelegatingDeserializer, a producer can grow the consumer's heap without bound by sending records with unique random spring.kafka.serialization.selector header values, eventually causing GC thrash and OutOfMemoryError. Affected versions: Spring for Apache Kafka 4.0.0...

In Spring for Apache Kafka, overly broad trusted-package matching in header mappers exposes JDK classes to deserialization

JsonKafkaHeaderMapper and the deprecated DefaultKafkaHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Combined with Jackson's default bean deserialization, a producer could supply crafted...