{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-83525","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","state":"PUBLISHED","assignerShortName":"apache","dateReserved":"2026-08-31T16:02:13.499Z","datePublished":"2026-10-28T16:37:19.893Z","dateUpdated":"2026-11-05T19:04:57.340Z"},"containers":{"cna":{"providerMetadata":{"orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","shortName":"apache","dateUpdated":"2026-10-28T16:37:19.893Z"},"title":"Apache Kafka: Incorrect boolean operator in FetchSnapshot RPC handler allows authenticated network clients to crash the KRaft controller via a malformed request.","problemTypes":[{"descriptions":[{"description":"CWE-480 Use of incorrect operator","lang":"en","cweId":"CWE-480","type":"CWE"}]}],"source":{"discovery":"EXTERNAL"},"affected":[{"vendor":"Apache Software Foundation","product":"Apache Kafka","collectionURL":"https://repo.maven.apache.org/maven2","packageName":"org.apache.kafka:kafka-raft","packageURL":"pkg:maven/org.apache.kafka/kafka-raft","versions":[{"status":"affected","version":"2.8.0","lessThan":"4.2.2","versionType":"semver"},{"status":"affected","version":"4.3.0","lessThan":"4.3.2","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"value":"Incorrect operator (CWE-480) in the FetchSnapshot RPC handler\nin Apache Kafka from 2.8.0 before 4.2.2, and from 4.3.0 before 4.3.2\non all platforms allows an authenticated attacker with\nCLUSTER_ACTION privilege to cause a denial of service\n(controller process termination) via a crafted\nFetchSnapshotRequest with an empty topics array or a topic\nwith no partitions.\n\nUsers are recommended to upgrade to version 4.2.2, 4.3.2, or\n4.4.0, which fix this issue. Users on unsupported branches\n(4.1.x and earlier) should upgrade to 4.2.2 or later.","lang":"en","supportingMedia":[{"type":"text/html","base64":false,"value":"Incorrect operator (CWE-480) in the FetchSnapshot RPC handler<br>in Apache Kafka from 2.8.0 before 4.2.2, and from 4.3.0 before 4.3.2<br>on all platforms allows an authenticated attacker with<br>CLUSTER_ACTION privilege to cause a denial of service<br>(controller process termination) via a crafted<br>FetchSnapshotRequest with an empty topics array or a topic<br>with no partitions.<br><br>Users are recommended to upgrade to version 4.2.2, 4.3.2, or<br>4.4.0, which fix this issue. Users on unsupported branches<br>(4.1.x and earlier) should upgrade to 4.2.2 or later."}]}],"references":[{"url":"https://github.com/apache/kafka/pull/23185","tags":["patch"]},{"url":"https://kafka.apache.org/cve-list","tags":["vendor-advisory"]}],"metrics":[{"other":{"type":"Textual description of severity","content":{"text":"low"}},"scenarios":[{"lang":"en","value":"GENERAL"}]}],"credits":[{"lang":"en","value":"Mike Read (GitHub: Michael-JRead)","type":"reporter"},{"lang":"en","value":"Kevin Wu <kwu@confluent.io>","type":"remediation developer"}],"x_generator":{"engine":"Vulnogram 1.0.3"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/10/28/7"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-10-28T20:07:03.066Z"}},{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.5,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-11-05T19:04:46.378503Z","id":"CVE-2026-83525","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-11-05T19:04:57.340Z"}}]}}