{"id":"CVE-2026-83525","aliases":[],"cve":{"records":[{"id":"CVE-2026-83525","source":"apache","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-08-31T16:02:13.499Z","published":"2026-10-28T16:37:19.893Z","modified":"2026-11-05T19:04:57.340Z"}],"publishers":[{"name":"apache","role":"CNA","organizationId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","modified":"2026-10-28T16:37:19.893Z"},{"name":"CVE","role":"ADP","organizationId":"af854a3a-2127-422b-91ae-364da2661108","modified":"2026-10-28T20:07:03.066Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-05T19:04:57.340Z"}],"references":[{"url":"https://github.com/apache/kafka/pull/23185","tags":["patch"],"source":"apache"},{"url":"https://kafka.apache.org/cve-list","tags":["vendor-advisory"],"source":"apache"},{"url":"http://www.openwall.com/lists/oss-security/2026/10/28/7","tags":[],"source":"CVE"}],"weaknesses":[{"id":"CWE-480","description":"CWE-480 Use of incorrect operator","source":"apache"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-05T19:04:46.378503Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Apache Kafka: Incorrect boolean operator in FetchSnapshot RPC handler allows authenticated network clients to crash the KRaft controller via a malformed request.","titleSource":"apache","descriptionSource":"apache","description":"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later.","score":6.5,"severity":"medium","published":"2026-10-28T16:37:19.893Z","modified":"2026-11-05T19:04:57.340Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Apache Software Foundation","name":"Apache Kafka","platforms":[],"versions":[{"version":"2.8.0","status":"affected","lessThan":"4.2.2","versionType":"semver"},{"version":"4.3.0","status":"affected","lessThan":"4.3.2","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:maven/org.apache.kafka/kafka-raft","packageIdentity":{"ecosystem":"Maven","name":"org.apache.kafka:kafka-raft"},"cpes":[],"source":"apache","url":"https://www.cve.org/CVERecord?id=CVE-2026-83525"}],"remediation":[],"references":["https://github.com/apache/kafka/pull/23185","https://kafka.apache.org/cve-list","http://www.openwall.com/lists/oss-security/2026/10/28/7"],"sources":[{"name":"CVE","id":"CVE-2026-83525","modified":"2026-11-05T19:04:57.340Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-83525"}],"assessments":[{"source":"CISA-ADP","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5}],"sourceAffected":[],"observedAt":"2026-11-05T19:50:13.205Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T01:55:30.737Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":null}