{"cve":"CVE-2020-9480","nvd":{"published":"2020-06-23T22:15:14.137","modified":"2026-06-17T03:28:01.360","status":"Modified","description":"In Apache Spark 2.4.5 and earlier, a standalone resource manager's master may be configured to require authentication (spark.authenticate) via a shared secret. When enabled, however, a specially-crafted RPC to the master can succeed in starting an application's resources on the Spark cluster, even without the shared key. This can be leveraged to execute shell commands on the host machine. This does not affect Spark clusters using other resource managers (YARN, Mesos, etc).","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:H/A:H","score":9.8},"cwes":["CWE-306"],"references":["https://lists.apache.org/thread.html/r03ad9fe7c07d6039fba9f2152d345274473cb0af3d8a4794a6645f4b%40%3Cuser.spark.apache.org%3E","https://lists.apache.org/thread.html/ra0e62a18ad080c4ce6df5e0202a27eaada75222761efc3f7238b5a3b%40%3Ccommits.doris.apache.org%3E","https://lists.apache.org/thread.html/rb3956440747e41940d552d377d50b144b60085e7ff727adb0e575d8d%40%3Ccommits.submarine.apache.org%3E","https://lists.apache.org/thread.html/ree9e87aae81852330290a478692e36ea6db47a52a694545c7d66e3e2%40%3Cdev.spark.apache.org%3E","https://spark.apache.org/security.html#CVE-2020-9480"],"products":["apache:spark","oracle:business_intelligence"],"source":"nvd","synced_at":"2026-10-19T21:05:42.039641217+00:00"},"epss":{"cve":"CVE-2020-9480","score":0.2937,"percentile":0.98178,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-wgx7-jwwm-cgjv","url":"https://osv.dev/vulnerability/GHSA-wgx7-jwwm-cgjv","summary":"Improper Authentication in Apache Spark","modified":"2024-10-15T16:40:37.173246Z","packages":[{"ecosystem":"Maven","name":"org.apache.spark:spark-parent_2.11","purl":"pkg:maven/org.apache.spark/spark-parent_2.11","ranges":["<2.4.6"],"fixed":["2.4.6"]},{"ecosystem":"PyPI","name":"pyspark","purl":"pkg:pypi/pyspark","ranges":["<2.4.6"],"fixed":["2.4.6"]}]},{"id":"PYSEC-2020-95","url":"https://osv.dev/vulnerability/PYSEC-2020-95","summary":"","modified":"2026-06-10T17:01:36.994430040Z","packages":[{"ecosystem":"PyPI","name":"pyspark","purl":"pkg:pypi/pyspark","ranges":["<2.4.6"],"fixed":["2.4.6"]}]}],"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."]}