{"id":"CVE-2026-112331","title":"Motor.NET < 0.19.0 Kafka Denial of Service via Structured CloudEvent Mapping","summary":"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…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-755"],"vendor":"GDATASoftwareAG","product":"motornet","affected":["motornet < 0.19.0"],"published":"2026-10-22","updated":"2026-10-22","sourceUpdated":"2026-10-22T19:50:43.806Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-112331","references":[{"url":"https://github.com/GDATASoftwareAG/motornet/releases/tag/v0.19.0","label":"Fixed Release Tag"},{"url":"https://github.com/GDATASoftwareAG/motornet/pull/1785","label":"Pull Request"},{"url":"https://github.com/GDATASoftwareAG/motornet/commit/b4b6979f5dd7447dd02312e27d766ae2e9d050c2","label":"Patch Commit"},{"url":"https://www.vulncheck.com/advisories/motor-net-kafka-denial-of-service-via-cloudevents-handler","label":"VulnCheck Advisory: Motor.NET < 0.19.0 Kafka Consumer Permanent DoS via Crafted CloudEvent Record"}],"tags":["cve.org"],"ingestedAt":"2026-10-22T22:00:50.413Z","slug":"CVE-2026-112331","body":"## Overview\n\nMotor.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.\n\n## Affected\n\n- `motornet < 0.19.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}