{"id":"CVE-2021-38296","aliases":["BIT-spark-2021-38296","EUVD-2022-0216","GHSA-9rr6-jpg7-9jg6","OESA-2022-1591","PYSEC-2022-186"],"status":"published","title":"Apache Spark Key Negotiation Vulnerability","description":"Apache Spark supports end-to-end encryption of RPC connections via \"spark.authenticate\" and \"spark.network.crypto.enabled\". In versions 3.1.2 and earlier, it uses a bespoke mutual authentication protocol that allows for full encryption key recovery. After an initial interactive attack, this would allow someone to decrypt plaintext traffic offline. Note that this does not affect security mechanisms controlled by \"spark.authenticate.enableSaslEncryption\", \"spark.io.encryption.enabled\", \"spark.ssl\", \"spark.ui.strictTransportSecurity\". Update to Apache Spark 3.1.3 or later","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01845,"percentile":0.792,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-294"],"published":"2022-03-10T08:20:12Z","modified":"2026-10-24T10:30:22Z","fixes":[{"ecosystem":"Maven","package":"org.apache.spark:spark-core","fixed_in":["3.1.3"],"sources":["ghsa","osv"]},{"ecosystem":"PyPI","package":"pyspark","fixed_in":["3.1.3"],"sources":["ghsa","osv"]},{"ecosystem":"Bitnami","package":"spark","fixed_in":["3.1.3"],"sources":["osv"]},{"ecosystem":"openEuler:20.03-LTS-SP1","package":"spark","fixed_in":["3.2.0-1.oe1"],"sources":["osv"]},{"ecosystem":"openEuler:20.03-LTS-SP2","package":"spark","fixed_in":["3.2.0-1.oe1"],"sources":["osv"]},{"ecosystem":"openEuler:20.03-LTS-SP3","package":"spark","fixed_in":["3.2.0-1.oe1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.spark:spark-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.3"}]}]},{"source":"ghsa","ecosystem":"PyPI","package":"pyspark","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.3"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"spark","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.1.3"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.apache.spark:spark-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.3"}]}]},{"source":"osv","ecosystem":"PyPI","package":"pyspark","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.3"}]}],"versions":["2.1.1","2.1.2","2.1.3","2.2.0","2.2.1","2.2.2","2.2.3","2.3.0","2.3.1","2.3.2","2.3.3","2.3.4","2.4.0","2.4.1","2.4.2","2.4.3","2.4.4","2.4.5","2.4.6","2.4.7","2.4.8","3.0.0","3.0.1","3.0.2","3.0.3","3.1.1","3.1.2"]},{"source":"osv","ecosystem":"openEuler:20.03-LTS-SP1","package":"spark","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.0-1.oe1"}]}]},{"source":"osv","ecosystem":"openEuler:20.03-LTS-SP2","package":"spark","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.0-1.oe1"}]}]},{"source":"osv","ecosystem":"openEuler:20.03-LTS-SP3","package":"spark","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.0-1.oe1"}]}]},{"source":"osv","ecosystem":"PyPI","package":"pyspark","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.3"}]}],"versions":["2.1.1","2.1.2","2.1.3","2.2.0","2.2.1","2.2.2","2.2.3","2.3.0","2.3.1","2.3.2","2.3.3","2.3.4","2.4.0","2.4.1","2.4.2","2.4.3","2.4.4","2.4.5","2.4.6","2.4.7","2.4.8","3.0.0","3.0.1","3.0.2","3.0.3","3.1.1","3.1.2"]}],"products":[{"vendor":"apache","product":"spark"},{"vendor":"apache software foundation","product":"apache spark"},{"vendor":"oracle","product":"financial_services_crime_and_compliance_management_studio"}],"references":[{"url":"https://lists.apache.org/thread/70x8fw2gx3g9ty7yk0f2f1dlpqml2smd","tags":["x_refsource_MISC","x_transferred","Mailing List","Vendor Advisory","advisory","web"]},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38296","tags":["web","advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/pyspark/PYSEC-2022-186.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-9rr6-jpg7-9jg6","tags":["advisory"]},{"url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1591","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2021-38296","title":"Apache Spark Key Negotiation Vulnerability","description":"Apache Spark supports end-to-end encryption of RPC connections via \"spark.authenticate\" and \"spark.network.crypto.enabled\". In versions 3.1.2 and earlier, it uses a bespoke mutual authentication protocol that allows for full encryption key recovery. After an initial interactive attack, this would allow someone to decrypt plaintext traffic offline. Note that this does not affect security mechanisms controlled by \"spark.authenticate.enableSaslEncryption\", \"spark.io.encryption.enabled\", \"spark.ssl\", \"spark.ui.strictTransportSecurity\". Update to Apache Spark 3.1.3 or later","status":"published","published":"2022-03-10T08:20:12Z","modified":"2024-08-04T01:37:16.315Z","cwes":["CWE-294"],"updated_at":"2026-11-02T14:33:07.349244Z"}],"euvd":[{"id":"EUVD-2022-0216","description":"Apache Spark supports end-to-end encryption of RPC connections via \"spark.authenticate\" and \"spark.network.crypto.enabled\". In versions 3.1.2 and earlier, it uses a bespoke mutual authentication protocol that allows for full encryption key recovery. After an initial interactive attack, this would allow someone to decrypt plaintext traffic offline. Note that this does not affect security mechanisms controlled by \"spark.authenticate.enableSaslEncryption\", \"spark.io.encryption.enabled\", \"spark.ssl\", \"spark.ui.strictTransportSecurity\". Update to Apache Spark 3.1.3 or later","status":"published","published":"2022-03-10T08:20:12Z","modified":"2024-08-04T01:37:16Z","updated_at":"2026-11-03T03:24:25.244479Z"}],"ghsa":[{"id":"GHSA-9rr6-jpg7-9jg6","title":"Authentication Bypass by Capture-replay in Apache Spark","description":"Apache Spark supports end-to-end encryption of RPC connections via \"spark.authenticate\" and \"spark.network.crypto.enabled\". In versions 3.1.2 and earlier, it uses a bespoke mutual authentication protocol that allows for full encryption key recovery. After an initial interactive attack, this would allow someone to decrypt plaintext traffic offline. Note that this does not affect security mechanisms controlled by \"spark.authenticate.enableSaslEncryption\", \"spark.io.encryption.enabled\", \"spark.ssl\", \"spark.ui.strictTransportSecurity\". Update to Apache Spark 3.1.3 or later","status":"published","published":"2022-03-11T00:02:36Z","modified":"2024-10-25T20:49:40Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-294"],"updated_at":"2026-11-02T14:38:13.09489Z"}],"nvd":[{"id":"CVE-2021-38296","description":"Apache Spark supports end-to-end encryption of RPC connections via \"spark.authenticate\" and \"spark.network.crypto.enabled\". In versions 3.1.2 and earlier, it uses a bespoke mutual authentication protocol that allows for full encryption key recovery. After an initial interactive attack, this would allow someone to decrypt plaintext traffic offline. Note that this does not affect security mechanisms controlled by \"spark.authenticate.enableSaslEncryption\", \"spark.io.encryption.enabled\", \"spark.ssl\", \"spark.ui.strictTransportSecurity\". Update to Apache Spark 3.1.3 or later","status":"published","published":"2022-03-10T09:15:07Z","modified":"2026-06-17T04:01:49.24Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-294"],"updated_at":"2026-11-02T14:07:05.198719Z"}],"osv":[{"id":"CVE-2021-38296","description":"Apache Spark supports end-to-end encryption of RPC connections via \"spark.authenticate\" and \"spark.network.crypto.enabled\". In versions 3.1.2 and earlier, it uses a bespoke mutual authentication protocol that allows for full encryption key recovery. After an initial interactive attack, this would allow someone to decrypt plaintext traffic offline. Note that this does not affect security mechanisms controlled by \"spark.authenticate.enableSaslEncryption\", \"spark.io.encryption.enabled\", \"spark.ssl\", \"spark.ui.strictTransportSecurity\". Update to Apache Spark 3.1.3 or later","status":"published","published":"2022-03-10T09:15:07Z","modified":"2026-10-24T10:30:22.515452964Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:20.843843Z"},{"id":"GHSA-9rr6-jpg7-9jg6","title":"Authentication Bypass by Capture-replay in Apache Spark","description":"Apache Spark supports end-to-end encryption of RPC connections via \"spark.authenticate\" and \"spark.network.crypto.enabled\". In versions 3.1.2 and earlier, it uses a bespoke mutual authentication protocol that allows for full encryption key recovery. After an initial interactive attack, this would allow someone to decrypt plaintext traffic offline. Note that this does not affect security mechanisms controlled by \"spark.authenticate.enableSaslEncryption\", \"spark.io.encryption.enabled\", \"spark.ssl\", \"spark.ui.strictTransportSecurity\". Update to Apache Spark 3.1.3 or later","status":"published","published":"2022-03-11T00:02:36Z","modified":"2024-10-25T21:03:01.673493Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"},{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-294"],"updated_at":"2026-11-02T15:46:44.225359Z"},{"id":"OESA-2022-1591","title":"spark security update","description":"Apache Spark achieves high performance for both batch and streaming data, using a state-of-the-art DAG scheduler, a query optimizer, and a physical execution engine.\r\n\r\nSecurity Fix(es):\r\n\r\nApache Spark supports end-to-end encryption of RPC connections via \u0026quot;spark.authenticate\u0026quot; and \u0026quot;spark.network.crypto.enabled\u0026quot;. In versions 3.1.2 and earlier, it uses a bespoke mutual authentication protocol that allows for full encryption key recovery. After an initial interactive attack, this would allow someone to decrypt plaintext traffic offline. Note that this does not affect security mechanisms controlled by \u0026quot;spark.authenticate.enableSaslEncryption\u0026quot;, \u0026quot;spark.io.encryption.enabled\u0026quot;, \u0026quot;spark.ssl\u0026quot;, \u0026quot;spark.ui.strictTransportSecurity\u0026quot;. Update to Apache Spark 3.1.3 or later(CVE-2021-38296)","status":"published","published":"2022-03-26T11:04:52Z","modified":"2026-08-18T01:15:54.563100223Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:52:39.528805Z"},{"id":"BIT-spark-2021-38296","title":"Apache Spark Key Negotiation Vulnerability","description":"Apache Spark supports end-to-end encryption of RPC connections via \"spark.authenticate\" and \"spark.network.crypto.enabled\". In versions 3.1.2 and earlier, it uses a bespoke mutual authentication protocol that allows for full encryption key recovery. After an initial interactive attack, this would allow someone to decrypt plaintext traffic offline. Note that this does not affect security mechanisms controlled by \"spark.authenticate.enableSaslEncryption\", \"spark.io.encryption.enabled\", \"spark.ssl\", \"spark.ui.strictTransportSecurity\". Update to Apache Spark 3.1.3 or later","status":"published","published":"2024-03-06T11:05:47.504Z","modified":"2026-09-08T08:48:19.537696946Z","updated_at":"2026-11-02T15:28:35.111822Z"},{"id":"PYSEC-2022-186","description":"Apache Spark supports end-to-end encryption of RPC connections via \"spark.authenticate\" and \"spark.network.crypto.enabled\". In versions 3.1.2 and earlier, it uses a bespoke mutual authentication protocol that allows for full encryption key recovery. After an initial interactive attack, this would allow someone to decrypt plaintext traffic offline. Note that this does not affect security mechanisms controlled by \"spark.authenticate.enableSaslEncryption\", \"spark.io.encryption.enabled\", \"spark.ssl\", \"spark.ui.strictTransportSecurity\". Update to Apache Spark 3.1.3 or later","status":"published","published":"2022-03-10T09:15:00Z","modified":"2023-12-06T01:01:25.567486Z","updated_at":"2026-11-02T15:52:53.449407Z"}]}}