{"id":"CVE-2026-112331","state":"PUBLISHED","title":"Motor.NET < 0.19.0 Kafka Denial of Service via Structured CloudEvent Mapping","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.","publishedAt":"2026-10-22T19:41:15.973Z","updatedAt":"2026-10-23T13:28:32.139Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["GDATASoftwareAG motornet"],"affected":[{"vendor":"GDATASoftwareAG","product":"motornet","packageURL":"pkg:github/GDATASoftwareAG/motornet","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.19.0","versionType":"semver"}],"repo":"https://github.com/GDATASoftwareAG/motornet"}],"references":["https://github.com/GDATASoftwareAG/motornet/releases/tag/v0.19.0","https://github.com/GDATASoftwareAG/motornet/pull/1785","https://github.com/GDATASoftwareAG/motornet/commit/b4b6979f5dd7447dd02312e27d766ae2e9d050c2","https://www.vulncheck.com/advisories/motor-net-kafka-denial-of-service-via-cloudevents-handler"],"weaknesses":["CWE-755"],"ingestedAt":"2026-10-29T20:10:43.281Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/112xxx/CVE-2026-112331.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-112331","state":"PUBLISHED","datePublished":"2026-10-22T19:41:15.973Z","dateUpdated":"2026-10-23T13:28:32.139Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-19T14:41:46.700Z"},"containers":{"cna":{"title":"Motor.NET < 0.19.0 Kafka Denial of Service via Structured CloudEvent Mapping","descriptions":[{"lang":"en","value":"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":[{"vendor":"GDATASoftwareAG","product":"motornet","packageURL":"pkg:github/GDATASoftwareAG/motornet","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"0.19.0","versionType":"semver"}],"repo":"https://github.com/GDATASoftwareAG/motornet"}],"references":[{"url":"https://github.com/GDATASoftwareAG/motornet/releases/tag/v0.19.0","name":"motornet v0.19.0 Release Notes","tags":["release-notes","patch"]},{"url":"https://github.com/GDATASoftwareAG/motornet/pull/1785","name":"Pull Request","tags":["issue-tracking","patch"]},{"url":"https://github.com/GDATASoftwareAG/motornet/commit/b4b6979f5dd7447dd02312e27d766ae2e9d050c2","name":"Patch Commit","tags":["patch"]},{"url":"https://www.vulncheck.com/advisories/motor-net-kafka-denial-of-service-via-cloudevents-handler","name":"VulnCheck Advisory: Motor.NET < 0.19.0 Kafka Consumer Permanent DoS via Crafted CloudEvent Record","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.7,"vectorString":"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"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","version":"3.1","baseSeverity":"HIGH","baseScore":7.5,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-755","lang":"en","description":"Improper Handling of Exceptional Conditions","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-23T13:28:32.139Z"},"tags":["x_open-source"],"datePublic":"2026-10-12T00:00:00.000Z","credits":[{"lang":"en","value":"Alex Williams from Pellera Technologies","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"vulncheck"}}}}}