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vuln-cve/data/2026/83xxx/CVE-2026-83525.json
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{
"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"
},
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"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",
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"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"
}
}
]
}
}