{"id":"CVE-2026-41726","state":"PUBLISHED","title":"In Spring for Apache Kafka, unbounded delegate cache keyed on user-controlled, potentially malicious selector header","description":"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.","publishedAt":"2026-06-09T23:48:51.048Z","updatedAt":"2026-06-27T21:14:56.775Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"vmware"},"assigner":"vmware","products":["Spring Spring for Apache Kafka"],"affected":[{"vendor":"Spring","product":"Spring for Apache Kafka","defaultStatus":"unaffected","versions":[{"version":"4.0.0","status":"affected","lessThan":"4.0.5.1","versionType":"custom"},{"version":"3.3.0","status":"affected","lessThan":"3.3.15.1","versionType":"custom"},{"version":"3.2.0","status":"affected","lessThan":"3.2.14","versionType":"custom"},{"version":"2.9.0","status":"affected","lessThan":"2.9.14","versionType":"custom"},{"version":"2.8.0","status":"affected","lessThan":"2.8.12","versionType":"custom"}]}],"references":["https://spring.io/security/cve-2026-41726"],"weaknesses":["CWE-770"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/41xxx/CVE-2026-41726.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-41726","state":"PUBLISHED","datePublished":"2026-06-09T23:48:51.048Z","dateUpdated":"2026-06-27T21:14:56.775Z","assignerShortName":"vmware","assignerOrgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateReserved":"2026-04-22T06:21:39.014Z"},"containers":{"cna":{"title":"In Spring for Apache Kafka, unbounded delegate cache keyed on user-controlled, potentially malicious selector header","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."}],"affected":[{"vendor":"Spring","product":"Spring for Apache Kafka","defaultStatus":"unaffected","versions":[{"version":"4.0.0","status":"affected","lessThan":"4.0.5.1","versionType":"custom"},{"version":"3.3.0","status":"affected","lessThan":"3.3.15.1","versionType":"custom"},{"version":"3.2.0","status":"affected","lessThan":"3.2.14","versionType":"custom"},{"version":"2.9.0","status":"affected","lessThan":"2.9.14","versionType":"custom"},{"version":"2.8.0","status":"affected","lessThan":"2.8.12","versionType":"custom"}]}],"references":[{"url":"https://spring.io/security/cve-2026-41726"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseSeverity":"MEDIUM","baseScore":6.5,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","lang":"en","description":"CWE-770: Allocation of Resources Without Limits or Throttling","type":"CWE"}]}],"providerMetadata":{"shortName":"vmware","orgId":"dcf2e128-44bd-42ed-91e8-88f912c1401d","dateUpdated":"2026-06-27T21:14:56.775Z"},"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."}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-10T17:38:31.984058Z","id":"CVE-2026-41726","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-10T17:40:20.549Z"}}]}}}