{"url":"http://public2.vulnerablecode.io/api/packages/262855?format=json","purl":"pkg:maven/org.apache.kafka/kafka_2.11@2.4.0","type":"maven","namespace":"org.apache.kafka","name":"kafka_2.11","version":"2.4.0","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":null,"latest_non_vulnerable_version":null,"affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/11272?format=json","vulnerability_id":"VCID-3jvm-ph93-bfch","summary":"Information Exposure Through Discrepancy\nSome components in Apache Kafka use `Arrays.equals` to validate a password or key, which is vulnerable to timing attacks that make brute force attacks for such credentials more likely to be successful.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-38153.json","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-38153.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-38153","reference_id":"","reference_type":"","scores":[{"value":"0.01058","scoring_system":"epss","scoring_elements":"0.77562","published_at":"2026-04-01T12:55:00Z"},{"value":"0.01058","scoring_system":"epss","scoring_elements":"0.77621","published_at":"2026-04-13T12:55:00Z"},{"value":"0.01058","scoring_system":"epss","scoring_elements":"0.77623","published_at":"2026-04-12T12:55:00Z"},{"value":"0.01058","scoring_system":"epss","scoring_elements":"0.77639","published_at":"2026-04-11T12:55:00Z"},{"value":"0.01058","scoring_system":"epss","scoring_elements":"0.77612","published_at":"2026-04-09T12:55:00Z"},{"value":"0.01058","scoring_system":"epss","scoring_elements":"0.77605","published_at":"2026-04-08T12:55:00Z"},{"value":"0.01058","scoring_system":"epss","scoring_elements":"0.77577","published_at":"2026-04-07T12:55:00Z"},{"value":"0.01058","scoring_system":"epss","scoring_elements":"0.77596","published_at":"2026-04-04T12:55:00Z"},{"value":"0.01058","scoring_system":"epss","scoring_elements":"0.77569","published_at":"2026-04-02T12:55:00Z"},{"value":"0.01188","scoring_system":"epss","scoring_elements":"0.78886","published_at":"2026-04-29T12:55:00Z"},{"value":"0.01188","scoring_system":"epss","scoring_elements":"0.78869","published_at":"2026-04-26T12:55:00Z"},{"value":"0.01188","scoring_system":"epss","scoring_elements":"0.78862","published_at":"2026-04-24T12:55:00Z"},{"value":"0.01188","scoring_system":"epss","scoring_elements":"0.78834","published_at":"2026-04-21T12:55:00Z"},{"value":"0.01188","scoring_system":"epss","scoring_elements":"0.78836","published_at":"2026-04-18T12:55:00Z"},{"value":"0.01188","scoring_system":"epss","scoring_elements":"0.78839","published_at":"2026-04-16T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-38153"},{"reference_url":"https://github.com/apache/kafka","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/apache/kafka"},{"reference_url":"https://kafka.apache.org/cve-list","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://kafka.apache.org/cve-list"},{"reference_url":"https://lists.apache.org/thread.html/r26390c8b09ecfa356582d665b0c01f4cdcf16ac047c85f9f9f06a88c@%3Cdev.kafka.apache.org%3E","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.apache.org/thread.html/r26390c8b09ecfa356582d665b0c01f4cdcf16ac047c85f9f9f06a88c@%3Cdev.kafka.apache.org%3E"},{"reference_url":"https://lists.apache.org/thread.html/r26390c8b09ecfa356582d665b0c01f4cdcf16ac047c85f9f9f06a88c@%3Cusers.kafka.apache.org%3E","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.apache.org/thread.html/r26390c8b09ecfa356582d665b0c01f4cdcf16ac047c85f9f9f06a88c@%3Cusers.kafka.apache.org%3E"},{"reference_url":"https://lists.apache.org/thread.html/r35322aec467ddae34002690edaa4d9f16e7df9b5bf7164869b75b62c@%3Cdev.kafka.apache.org%3E","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.apache.org/thread.html/r35322aec467ddae34002690edaa4d9f16e7df9b5bf7164869b75b62c@%3Cdev.kafka.apache.org%3E"},{"reference_url":"https://lists.apache.org/thread.html/r45cc0602d5f2cbb72e48896dfadf5e5b87ed85630449598b40e8f0be@%3Cdev.kafka.apache.org%3E","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://lists.apache.org/thread.html/r45cc0602d5f2cbb72e48896dfadf5e5b87ed85630449598b40e8f0be@%3Cdev.kafka.apache.org%3E"},{"reference_url":"https://lists.apache.org/thread.html/r45cc0602d5f2cbb72e48896dfadf5e5b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ps://access.redhat.com/errata/RHSA-2022:2232"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:5532","reference_id":"RHSA-2022:5532","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:5532"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:5606","reference_id":"RHSA-2022:5606","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:5606"},{"reference_url":"https://access.redhat.com/errata/RHSA-2022:6407","reference_id":"RHSA-2022:6407","reference_type":"","scores":[],"url":"https://access.redhat.com/errata/RHSA-2022:6407"}],"fixed_packages":[],"aliases":["CVE-2021-38153","GHSA-3j6g-hxx5-3q26"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-3jvm-ph93-bfch"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/30221?format=json","vulnerability_id":"VCID-qepc-2rn8-hufs","summary":"Apache Kafka Deserialization of Untrusted Data vulnerability\nA possible security vulnerability has been identified in Apache Kafka.\nThis requires access to a alterConfig to the cluster resource, or Kafka Connect worker, and the ability to create/modify connectors on it with an arbitrary Kafka client SASL JAAS config\nand a SASL-based security protocol, which has been possible on Kafka clusters since Apache Kafka 2.0.0 (Kafka Connect 2.3.0).\nWhen configuring the broker via config file or AlterConfig command, or connector via the Kafka Kafka Connect REST API, an authenticated operator can set the `sasl.jaas.config`\nproperty for any of the connector's Kafka clients to \"com.sun.security.auth.module.LdapLoginModule\", which can be done via the\n`producer.override.sasl.jaas.config`, `consumer.override.sasl.jaas.config`, or `admin.override.sasl.jaas.config` properties.\nThis will allow the server to connect to the attacker's LDAP server\nand deserialize the LDAP response, which the attacker can use to execute java deserialization gadget chains on the Kafka connect server.\nAttacker can cause unrestricted deserialization of untrusted data (or) RCE vulnerability when there are gadgets in the classpath.\n\nSince Apache Kafka 3.0.0, users are allowed to specify these properties in connector configurations for Kafka Connect clusters running with out-of-the-box\nconfigurations. Before Apache Kafka 3.0.0, users may not specify these properties unless the Kafka Connect cluster has been reconfigured with a connector\nclient override policy that permits them.\n\nSince Apache Kafka 3.9.1/4.0.0, we have added a system property (\"-Dorg.apache.kafka.disallowed.login.modules\") to disable the problematic login modules usage\nin SASL JAAS configuration. Also by default \"com.sun.security.auth.module.JndiLoginModule,com.sun.security.auth.module.LdapLoginModule\" are disabled in Apache Kafka Connect 3.9.1/4.0.0. \n\nWe advise the Kafka users to validate connector configurations and only allow trusted LDAP configurations. Also examine connector dependencies for \nvulnerable versions and either upgrade their connectors, upgrading that specific dependency, or removing the connectors as options for remediation. Finally,\nin addition to leveraging the \"org.apache.kafka.disallowed.login.modules\" system property, Kafka Connect users can also implement their own connector\nclient config override policy, which can be used to control which Kafka client properties can be overridden directly in a connector config and which cannot.","references":[{"reference_url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-27818.json","reference_id":"","reference_type":"","scores":[{"value":"8.0","scoring_system":"cvssv3","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"}],"url":"https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-27818.json"},{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2025-27818","reference_id":"","reference_type":"","scores":[{"value":"0.00278","scoring_system":"epss","scoring_elements":"0.51214","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00278","scoring_system":"epss","scoring_elements":"0.51188","published_at":"2026-04-02T12:55:00Z"},{"value":"0.0041","scoring_system":"epss","scoring_elements":"0.61379","published_at":"2026-04-21T12:55:00Z"},{"value":"0.0041","scoring_system":"epss","scoring_elements":"0.61368","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00503","scoring_system":"epss","scoring_elements":"0.66101","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00503","scoring_system":"epss","scoring_elements":"0.66131","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00503","scoring_system":"epss","scoring_elements":"0.66144","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00503","scoring_system":"epss","scoring_elements":"0.66063","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00503","scoring_system":"epss","scoring_elements":"0.66124","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00503","scoring_system":"epss","scoring_elements":"0.66112","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00503","scoring_system":"epss","scoring_elements":"0.6617","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00503","scoring_system":"epss","scoring_elements":"0.66171","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00503","scoring_system":"epss","scoring_elements":"0.6615","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00503","scoring_system":"epss","scoring_elements":"0.66137","published_at":"2026-04-16T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2025-27818"},{"reference_url":"https://github.com/apache/kafka","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/apache/kafka"},{"reference_url":"https://kafka.apache.org/cve-list","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-06-10T14:18:28Z/"}],"url":"https://kafka.apache.org/cve-list"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2025-27818","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-27818"},{"reference_url":"http://www.openwall.com/lists/oss-security/2025/06/09/2","reference_id":"","reference_type":"","scores":[{"value":"8.8","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"value":"HIGH","scoring_system":"generic_textual","scoring_elements":""}],"url":"http://www.openwall.com/lists/oss-security/2025/06/09/2"},{"reference_url":"https://bugzilla.redhat.com/show_bug.cgi?id=2371368","reference_id":"2371368","reference_type":"","scores":[],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2371368"},{"reference_url":"https://github.com/advisories/GHSA-76qp-h5mr-frr4","reference_id":"GHSA-76qp-h5mr-frr4","reference_type":"","scores":[{"value":"HIGH","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-76qp-h5mr-frr4"}],"fixed_packages":[],"aliases":["CVE-2025-27818","GHSA-76qp-h5mr-frr4"],"risk_score":4.0,"exploitability":"0.5","weighted_severity":"8.0","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-qepc-2rn8-hufs"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/14739?format=json","vulnerability_id":"VCID-vf6g-gc99-1uak","summary":"Apache Kafka's SCRAM implementation Incorrectly Implements Authentication Algorithm\nIncorrect Implementation of Authentication Algorithm in Apache Kafka's SCRAM implementation.\n\nIssue Summary:\nApache Kafka's implementation of the Salted Challenge Response Authentication Mechanism (SCRAM) did not fully adhere to the requirements of RFC 5802 [1].\nSpecifically, as per RFC 5802, the server must verify that the nonce sent by the client in the second message matches the nonce sent by the server in its first message.\nHowever, Kafka's SCRAM implementation did not perform this validation.\n\nImpact:\nThis vulnerability is exploitable only when an attacker has plaintext access to the SCRAM authentication exchange. However, the usage of SCRAM over plaintext is strongly discouraged as it is considered an insecure practice [2]. Apache Kafka recommends deploying SCRAM exclusively with TLS encryption to protect SCRAM exchanges from interception [3].\nDeployments using SCRAM with TLS are not affected by this issue.\n\nHow to Detect If You Are Impacted:\nIf your deployment uses SCRAM authentication over plaintext communication channels (without TLS encryption), you are likely impacted.\nTo check if TLS is enabled, review your server.properties configuration file for listeners property. If you have SASL_PLAINTEXT in the listeners, then you are likely impacted.\n\nFix Details:\nThe issue has been addressed by introducing nonce verification in the final message of the SCRAM authentication exchange to ensure compliance with RFC 5802.\n\nAffected Versions:\nApache Kafka versions 0.10.2.0 through 3.9.0, excluding the fixed versions below.\n\nFixed Versions:\n3.9.0\n3.8.1\n3.7.2\n\nUsers are advised to upgrade to 3.7.2 or later to mitigate this issue.\n\nRecommendations for Mitigation:\nUsers unable to upgrade to the fixed versions can mitigate the issue by:\n- Using TLS with SCRAM Authentication:\nAlways deploy SCRAM over TLS to encrypt authentication exchanges and protect against interception.\n- Considering Alternative Authentication Mechanisms:\nEvaluate alternative authentication mechanisms, such as PLAIN, Kerberos or OAuth with TLS, which provide additional layers of 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