{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-41726", "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "state": "PUBLISHED", "assignerShortName": "vmware", "dateReserved": "2026-04-22T06:21:39.014Z", "datePublished": "2026-06-09T23:48:51.048Z", "dateUpdated": "2026-06-09T23:48:51.048Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "shortName": "vmware", "dateUpdated": "2026-06-09T23:48:51.048Z"}, "title": "In Spring for Apache Kafka, unbounded delegate cache keyed on user-controlled, potentially malicious selector header", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-770", "description": "CWE-770: Allocation of Resources Without Limits or Throttling", "type": "CWE"}]}], "impacts": [{"descriptions": [{"lang": "en", "value": "A producer can exhaust a consumer's heap without bound by sending Kafka records with unique random spring.kafka.serialization.selector header values when DelegatingDeserializer is configured."}]}], "affected": [{"vendor": "Spring", "product": "Spring for Apache Kafka", "defaultStatus": "unaffected", "versions": [{"status": "affected", "version": "4.0.0", "lessThan": "4.0.6", "versionType": "custom"}, {"status": "affected", "version": "3.3.0", "lessThan": "3.3.16", "versionType": "custom"}, {"status": "affected", "version": "3.2.0", "lessThan": "3.2.14", "versionType": "custom"}, {"status": "affected", "version": "2.9.0", "lessThan": "2.9.14", "versionType": "custom"}, {"status": "affected", "version": "2.8.0", "lessThan": "2.8.12", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "When an application opts into DelegatingDeserializer, a producer can grow the consumer's heap without bound by sending records with unique random spring.kafka.serialization.selector header values, eventually causing GC thrash and OutOfMemoryError.\n\nAffected versions:\nSpring for Apache Kafka 4.0.0 through 4.0.5; 3.3.0 through 3.3.15; 3.2.0 through 3.2.13; 2.9.0 through 2.9.13; 2.8.0 through 2.8.11.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "When an application opts into DelegatingDeserializer, a producer can grow the consumer's heap without bound by sending records with unique random spring.kafka.serialization.selector header values, eventually causing GC thrash and OutOfMemoryError.\n\nAffected versions:\nSpring for Apache Kafka 4.0.0 through 4.0.5; 3.3.0 through 3.3.15; 3.2.0 through 3.2.13; 2.9.0 through 2.9.13; 2.8.0 through 2.8.11."}]}], "references": [{"url": "https://spring.io/security/cve-2026-41726"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.1"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "When an application opts into DelegatingDeserializer, a producer can grow the consumer's heap without bound by sending records with unique random spring.kafka.serialization.selector header values, eventually causing GC thrash and OutOfMemoryError.\n\nAffected versions:\nSpring for Apache Kafka 4.0.0 through 4.0.5; 3.3.0 through 3.3.15; 3.2.0 through 3.2.13; 2.9.0 through 2.9.13; 2.8.0 through 2.8.11."}], "id": "CVE-2026-41726", "lastModified": "2026-06-10T00:16:52.030", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security@vmware.com", "type": "Secondary"}]}, "published": "2026-06-10T00:16:52.030", "references": [{"source": "security@vmware.com", "url": "https://spring.io/security/cve-2026-41726"}], "sourceIdentifier": "security@vmware.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "security@vmware.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0,4.0.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.3.0,3.3.16)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.2.0,3.2.14)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.9.0,2.9.14)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.8.0,2.8.12)"}}], "original": {"product": "Spring for Apache Kafka", "source": "cna", "vendor": "Spring"}, "product": "spring_for_apache_kafka", "vendor": "spring"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0,4.0.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.3.0,3.3.16)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.2.0,3.2.14)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.9.0,2.9.14)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.8.0,2.8.12)"}}], "enrichment": {"confidence": 83.0, "confidence_source": "matching", "scores": [{"score": 83.0, "source": "matching"}]}, "original": {"product": "Spring for Apache Kafka", "source": "cna", "vendor": "Spring"}, "product": "spring_for_apache_kafka", "vendor": "vmware"}], "created": "2026-06-10T01:30:18.171141+00:00", "updated": "2026-06-10T11:21:37.226012+00:00", "vendors": ["spring", "spring$PRODUCT$spring_for_apache_kafka", "vmware", "vmware$PRODUCT$spring_for_apache_kafka"]}