{"id":"CVE-2026-116593","state":"PUBLISHED","title":"Apache Kafka: Kafka Connect configuration provider values exposed via validation REST API endpoint","description":"Apache Kafka Connect has the /connector-plugins/{connector-type}/config/validate endpoint on its REST API to validate connector configurations.\nApache Kafka Connect also support Configuration Providers which enable to hide the values of sensitive configuration and only resolve them at runtime. \n\nAn attacker with access to the validate endpoint can use it to resolve and return plaintext values via any of the configuration providers installed on a Connect worker.\n\nUsers are recommended to upgrade to version 4.2.2, 4.3.2, 4.4.0 or above, which fix this issue.","publishedAt":"2026-10-28T16:46:21.415Z","updatedAt":"2026-10-30T12:25:18.712Z","severity":null,"assigner":"apache","products":["Apache Software Foundation Apache Kafka"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Kafka","packageName":"org.apache.kafka:connect-runtime","packageURL":"pkg:maven/org.apache.kafka/connect-runtime","defaultStatus":"unaffected","versions":[{"version":"2.4.0","status":"affected","lessThan":"4.2.2","versionType":"semver"},{"version":"4.3.0","status":"affected","lessThan":"4.3.2","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"references":["https://kafka.apache.org/cve-list","https://lists.apache.org/thread/ylblfrfk1bspy9zh2j6dz8o2pkn6s9g0","http://www.openwall.com/lists/oss-security/2026/10/28/16"],"weaknesses":[],"ingestedAt":"2026-10-30T12:40:04.423Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/116xxx/CVE-2026-116593.json","commit":"db8103c5921aac81d5d90efcf3745980dafabf49","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116593","state":"PUBLISHED","datePublished":"2026-10-28T16:46:21.415Z","dateUpdated":"2026-10-30T12:25:18.712Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-10-26T15:15:31.645Z"},"containers":{"cna":{"title":"Apache Kafka: Kafka Connect configuration provider values exposed via validation REST API endpoint","descriptions":[{"lang":"en","value":"Apache Kafka Connect has the /connector-plugins/{connector-type}/config/validate endpoint on its REST API to validate connector configurations.\nApache Kafka Connect also support Configuration Providers which enable to hide the values of sensitive configuration and only resolve them at runtime. \n\nAn attacker with access to the validate endpoint can use it to resolve and return plaintext values via any of the configuration providers installed on a Connect worker.\n\nUsers are recommended to upgrade to version 4.2.2, 4.3.2, 4.4.0 or above, which fix this issue."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Kafka","packageName":"org.apache.kafka:connect-runtime","packageURL":"pkg:maven/org.apache.kafka/connect-runtime","defaultStatus":"unaffected","versions":[{"version":"2.4.0","status":"affected","lessThan":"4.2.2","versionType":"semver"},{"version":"4.3.0","status":"affected","lessThan":"4.3.2","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"references":[{"url":"https://kafka.apache.org/cve-list","tags":["vendor-advisory"]},{"url":"https://lists.apache.org/thread/ylblfrfk1bspy9zh2j6dz8o2pkn6s9g0","tags":["mailing-list"]}],"metrics":[{"other":{"type":"Textual description of severity","content":{"text":"moderate"}},"scenarios":[{"lang":"en","value":"GENERAL"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-10-30T12:25:18.712Z"},"source":{"discovery":"UNKNOWN"},"credits":[{"lang":"en","value":"Hyunwoo Kim <imv4bel@gmail.com>","type":"reporter"},{"lang":"en","value":"Sudhanshu Chauhan <sudhanshu@redhuntlabs.com>, RedHunt Labs","type":"reporter"},{"lang":"en","value":"Bartłomiej Dmitruk <bartek@striga.ai>, Striga","type":"reporter"},{"lang":"en","value":"Andrew MacPherson <andrew@andrewmohawk.com>","type":"reporter"},{"lang":"en","value":"Mickael Maison <mickael.maison@gmail.com>","type":"remediation developer"},{"lang":"en","value":"Liran Neduva <neduvaliran@gmail.com>","type":"reporter"}],"x_generator":{"engine":"Vulnogram 1.0.3"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/10/28/16"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-10-28T20:07:01.640Z"}}]}}}