Vulnerability · Published Oct 22, 2026 · Assigned by VulnCheck

CVE-2026-112331Motor.NET < 0.19.0 Kafka Denial of Service via Structured CloudEvent Mapping

High 7.5

In plain English

A high-severity security flaw in motornet from GDATASoftwareAG. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.7%top 47.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
GDATASoftwareAG	motornet	0 – before 0.19.0

Weakness: CWE-755 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

motornet v0.19.0 Release Notes release-notes, patch
Pull Request issue-tracking, patch
Patch Commit patch
VulnCheck Advisory: Motor.NET < 0.19.0 Kafka Consumer Permanent DoS via Crafted CloudEvent Record third-party-advisory