CVE-2026-112331 Motor.NET < 0.19.0 Kafka Denial of Service via Structured CloudEvent Mapping
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-112331?
CVE-2026-112331 is a high-severity vulnerability in GDATASoftwareAG motornet, published on 22 Oct 2026.
Official description
Motor.NET before 0.19.0 contains a denial-of-service vulnerability that allows a remote attacker who can produce records to a consumed topic to crash the service permanently by sending a single crafted record. By setting the content-type header to application/cloudevents+json and omitting required CloudEvent attributes (id, source, type), the attacker triggers an ArgumentException in KafkaMessageConsumer.SingleMessageHandlingAsync that is treated as fatal, causing the host to stop and re-process the same poison record on every restart, resulting in a permanent crash-loop.
Weakness: CWE-755
Which versions are affected by CVE-2026-112331?
How do I fix CVE-2026-112331?
No fix has been published for CVE-2026-112331 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-112331 being exploited?
There is no known exploitation of CVE-2026-112331 in the wild and no public exploit code.
Sources
Also known as GHSA-q4r9-vcjf-8wc9.