{"id":"CVE-2026-112331","summary":"Motor.NET \u003c 0.19.0 Kafka Denial of Service via Structured CloudEvent Mapping","details":"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.","modified":"2026-11-05T21:15:52.536101583Z","published":"2026-10-22T19:41:15.973Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112331.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-755"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112331.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112331"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/motor-net-kafka-denial-of-service-via-cloudevents-handler"},{"type":"FIX","url":"https://github.com/GDATASoftwareAG/motornet/commit/b4b6979f5dd7447dd02312e27d766ae2e9d050c2"},{"type":"FIX","url":"https://github.com/GDATASoftwareAG/motornet/pull/1785"},{"type":"FIX","url":"https://github.com/GDATASoftwareAG/motornet/releases/tag/v0.19.0"},{"type":"PACKAGE","url":"https://github.com/GDATASoftwareAG/motornet"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/gdatasoftwareag/motornet","events":[{"introduced":"0"},{"fixed":"c2eaa0e9ac17b28c1f7b044825c7d60e57a5600e"},{"fixed":"b4b6979f5dd7447dd02312e27d766ae2e9d050c2"}],"database_specific":{"extracted_events":[{"strategy":"StandardRange","range":[{"introduced":"0"},{"fixed":"0.19.0"}],"source":"AFFECTED_FIELD"},{"source":"REFERENCES_TAG","original_tag":"v0.19.0","range":[{"fixed":"c2eaa0e9ac17b28c1f7b044825c7d60e57a5600e"}]},{"source":"REFERENCES_COMMIT","range":[{"fixed":"b4b6979f5dd7447dd02312e27d766ae2e9d050c2"}]}]}}],"versions":["v0.19.0-pre2","v0.19.0-pre1","v0.18.2","v0.18.1","v0.18.0","v0.17.0","v0.16.1","v0.15.1","v0.15.0","v0.14.0","v0.14.0-rc1","v0.13.2","v0.13.1","v0.13.0","v0.12.0","v0.11.1","v0.11.0","v0.10.6","v0.10.4","v0.10.3","v0.10.2","v0.10.1","v0.10.0","v0.9.11","v0.9.10","v0.9.9","v0.9.8","v0.9.7","v0.9.6","v0.9.5","v0.9.4","v0.9.3","v0.9.2","V0.9.1","v0.9.0","v0.8.2","v0.8.1","v0.8.0","v0.7.4","v0.7.3","v0.7.2","v0.7.1","v0.7.0","v0.6.14","v0.6.13","v0.6.12","v0.6.11","v0.6.10","v0.6.9","v0.6.8","v0.6","v0.6.7","v0.6.6","v0.6.5","v0.6.4","v0.6.3","v0.6.2","v0.6.1","v0.6.0","v0.5.4","v0.5.3","v0.5.2","v0.5.1","v0.5.0","v0.4.0","v0.3.0","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-112331.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}