{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-111496", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-10-16T09:55:02.432Z", "datePublished": "2026-10-28T16:45:08.114Z", "dateUpdated": "2026-10-28T20:06:55.726Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-10-28T16:45:08.114Z"}, "title": "Apache Kafka: Kafka Streams StreamThread hang from integer overflow in stream-time punctuation", "problemTypes": [{"descriptions": [{"description": "CWE-190 Integer overflow or wraparound", "lang": "en", "cweId": "CWE-190", "type": "CWE"}]}, {"descriptions": [{"description": "CWE-835 Loop with unreachable exit condition ('infinite loop')", "lang": "en", "cweId": "CWE-835", "type": "CWE"}]}], "source": {"discovery": "EXTERNAL"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache Kafka", "packageURL": "pkg:maven/org.apache.kafka/kafka-streams", "versions": [{"status": "affected", "version": "1.1.0", "lessThanOrEqual": "4.1.2", "versionType": "semver"}, {"status": "affected", "version": "4.2.0", "lessThanOrEqual": "4.2.1", "versionType": "semver"}, {"status": "affected", "version": "4.3.0", "lessThanOrEqual": "4.3.1", "versionType": "semver"}], "defaultStatus": "unaffected", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.kafka:kafka-streams"}], "descriptions": [{"value": "Kafka Streams derives its stream-time clock from record timestamps. PunctuationSchedule.next()\u00a0computed the next punctuation time as timestamp + (intervalsMissed + 1) * interval with no\u00a0overflow check. A record with a timestamp at or near Long.MAX_VALUE advances stream time to that\u00a0value, so the next stream-time punctuation overflows to a negative time. PunctuationQueue then\u00a0re-queues that time and loops on it indefinitely while holding a lock, stalling the StreamThread.\n\n\nImpact:\n\nA single record is enough. The affected StreamThread stops processing, and because the record\u00a0stays in the topic the hang returns on restart; an application whose partitions are all affected\u00a0becomes unresponsive. Only the Streams application is affected, not the brokers or the cluster.\u00a0Triggering it needs write access to a source topic whose topology uses stream-time punctuation,\u00a0and a broker that stores the record: brokers from Apache Kafka 4.0.0 reject such a timestamp by\u00a0default (log.message.timestamp.after.max.ms, one hour), so it is reachable only on older brokers\u00a0or where that bound has been relaxed.\n\n\nMitigation:\n\nUpgrade Kafka Streams to 4.2.2, 4.3.2, or 4.4.0. As defense in depth, keep\u00a0log.message.timestamp.after.max.ms bounded on source topics and restrict write access to them.\n\n\nResolution:\n\nFrom Apache Kafka 4.2.2, 4.3.2, and 4.4.0: the next punctuation time is computed with\u00a0overflow-checked arithmetic (clamped to Long.MAX_VALUE), and a rescheduled punctuation is\u00a0re-queued only when its time moves forward.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<div>Kafka Streams derives its stream-time clock from record timestamps. PunctuationSchedule.next()&nbsp;<span>computed the next punctuation time as timestamp + (intervalsMissed + 1) * interval with no&nbsp;</span><span>overflow check. A record with a timestamp at or near Long.MAX_VALUE advances stream time to that&nbsp;</span><span>value, so the next stream-time punctuation overflows to a negative time. PunctuationQueue then&nbsp;</span><span>re-queues that time and loops on it indefinitely while holding a lock, stalling the StreamThread.</span></div><br><div>Impact:</div><div>A single record is enough. The affected StreamThread stops processing, and because the record&nbsp;<span>stays in the topic the hang returns on restart; an application whose partitions are all affected&nbsp;</span><span>becomes unresponsive. Only the Streams application is affected, not the brokers or the cluster.&nbsp;</span><span>Triggering it needs write access to a source topic whose topology uses stream-time punctuation,&nbsp;</span><span>and a broker that stores the record: brokers from Apache Kafka 4.0.0 reject such a timestamp by&nbsp;</span><span>default (log.message.timestamp.after.max.ms, one hour), so it is reachable only on older brokers&nbsp;</span><span>or where that bound has been relaxed.</span></div><br><div>Mitigation:</div><div>Upgrade Kafka Streams to 4.2.2, 4.3.2, or 4.4.0. As defense in depth, keep&nbsp;<span>log.message.timestamp.after.max.ms bounded on source topics and restrict write access to them.</span></div><br><div>Resolution:</div><div>From Apache Kafka 4.2.2, 4.3.2, and 4.4.0: the next punctuation time is computed with&nbsp;<span>overflow-checked arithmetic (clamped to Long.MAX_VALUE), and a rescheduled punctuation is&nbsp;</span><span>re-queued only when its time moves forward.</span></div>"}]}], "references": [{"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": "Matthias J. Sax <matthias@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/2026/10/28/14"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-10-28T20:06:55.726Z"}}]}}

{}

{"affected": [{"affectedData": [{"collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected", "packageName": "org.apache.kafka:kafka-streams", "packageURL": "pkg:maven/org.apache.kafka/kafka-streams", "product": "Apache Kafka", "vendor": "Apache Software Foundation", "versions": [{"lessThanOrEqual": "4.1.2", "status": "affected", "version": "1.1.0", "versionType": "semver"}, {"lessThanOrEqual": "4.2.1", "status": "affected", "version": "4.2.0", "versionType": "semver"}, {"lessThanOrEqual": "4.3.1", "status": "affected", "version": "4.3.0", "versionType": "semver"}]}], "source": "security@apache.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Kafka Streams derives its stream-time clock from record timestamps. PunctuationSchedule.next()\u00a0computed the next punctuation time as timestamp + (intervalsMissed + 1) * interval with no\u00a0overflow check. A record with a timestamp at or near Long.MAX_VALUE advances stream time to that\u00a0value, so the next stream-time punctuation overflows to a negative time. PunctuationQueue then\u00a0re-queues that time and loops on it indefinitely while holding a lock, stalling the StreamThread.\n\n\nImpact:\n\nA single record is enough. The affected StreamThread stops processing, and because the record\u00a0stays in the topic the hang returns on restart; an application whose partitions are all affected\u00a0becomes unresponsive. Only the Streams application is affected, not the brokers or the cluster.\u00a0Triggering it needs write access to a source topic whose topology uses stream-time punctuation,\u00a0and a broker that stores the record: brokers from Apache Kafka 4.0.0 reject such a timestamp by\u00a0default (log.message.timestamp.after.max.ms, one hour), so it is reachable only on older brokers\u00a0or where that bound has been relaxed.\n\n\nMitigation:\n\nUpgrade Kafka Streams to 4.2.2, 4.3.2, or 4.4.0. As defense in depth, keep\u00a0log.message.timestamp.after.max.ms bounded on source topics and restrict write access to them.\n\n\nResolution:\n\nFrom Apache Kafka 4.2.2, 4.3.2, and 4.4.0: the next punctuation time is computed with\u00a0overflow-checked arithmetic (clamped to Long.MAX_VALUE), and a rescheduled punctuation is\u00a0re-queued only when its time moves forward."}], "id": "CVE-2026-111496", "lastModified": "2026-10-28T20:17:18.863", "metrics": {}, "published": "2026-10-28T17:17:39.693", "references": [{"source": "security@apache.org", "url": "https://kafka.apache.org/cve-list"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/10/28/14"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}, {"lang": "en", "value": "CWE-835"}], "source": "security@apache.org", "type": "Secondary"}]}

{}

{"created": "2026-10-28T18:30:15.306525+00:00", "updated": "2026-10-28T18:30:15.306529+00:00", "vendors": []}