{"cve":"CVE-2019-10099","nvd":{"published":"2019-08-07T17:15:12.073","modified":"2026-06-17T02:10:14.103","status":"Modified","description":"Prior to Spark 2.3.3, in certain situations Spark would write user data to local disk unencrypted, even if spark.io.encryption.enabled=true. This includes cached blocks that are fetched to disk (controlled by spark.maxRemoteBlockSizeFetchToMem); in SparkR, using parallelize; in Pyspark, using broadcast and parallelize; and use of python udfs.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-312"],"references":["https://lists.apache.org/thread.html/c2a39c207421797f82823a8aff488dcd332d9544038307bf69a2ba9e%40%3Cuser.spark.apache.org%3E","https://lists.apache.org/thread.html/ra216b7b0dd82a2c12c2df9d6095e689eb3f3d28164e6b6587da69fae%40%3Ccommits.spark.apache.org%3E","https://lists.apache.org/thread.html/rabe1d47e2bf8b8f6d9f3068c8d2679731d57fa73b3a7ed1fa82406d2%40%3Cissues.spark.apache.org%3E","https://lists.apache.org/thread.html/c2a39c207421797f82823a8aff488dcd332d9544038307bf69a2ba9e%40%3Cuser.spark.apache.org%3E","https://lists.apache.org/thread.html/ra216b7b0dd82a2c12c2df9d6095e689eb3f3d28164e6b6587da69fae%40%3Ccommits.spark.apache.org%3E"],"products":["apache:spark"],"source":"nvd","synced_at":"2026-10-19T20:58:11.797917892+00:00"},"epss":{"cve":"CVE-2019-10099","score":0.01302,"percentile":0.70484,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-fp5j-3fpf-mhj5","url":"https://osv.dev/vulnerability/GHSA-fp5j-3fpf-mhj5","summary":"Sensitive data written to disk unencrypted in Spark","modified":"2024-10-24T22:35:50.837996Z","packages":[{"ecosystem":"Maven","name":"org.apache.spark:spark-core_2.11","purl":"pkg:maven/org.apache.spark/spark-core_2.11","ranges":["<2.3.3"],"fixed":["2.3.3"]},{"ecosystem":"PyPI","name":"pyspark","purl":"pkg:pypi/pyspark","ranges":["<2.3.3"],"fixed":["2.3.3"]}]},{"id":"PYSEC-2019-114","url":"https://osv.dev/vulnerability/PYSEC-2019-114","summary":"","modified":"2026-06-10T17:01:42.545106499Z","packages":[{"ecosystem":"PyPI","name":"pyspark","purl":"pkg:pypi/pyspark","ranges":["<2.3.3"],"fixed":["2.3.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}