CVE-2026-112331
CVE-2026-112331
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
- github.com/GDATASoftwareAG/motornet/releases/tag/v0.19.0 (release-notes, patch)
- github.com/GDATASoftwareAG/motornet/pull/1785 (issue-tracking, patch)
- github.com/GDATASoftwareAG/motornet/commit/b4b6979f5dd7447dd02312e27d766ae2e9d0… (patch)
- www.vulncheck.com/advisories/motor-net-kafka-denial-of-service-via-cloudevents-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-112331?
- CVE-2026-112331 is a high-severity vulnerability, classified under Improper Handling of Exceptional Conditions. CVSS score: 7.5/10. Published 2026-10-22.
- How severe is CVE-2026-112331?
- High severity. CVSS v3 base score is 7.5 out of 10.