cve.bz

CVE-2020-9480

9.8 criticalEPSS 29%

Critical (9.8). EPSS 29% chance of exploitation in the next 30 days. Fixed in org.apache.spark:spark-parent_2.11 2.4.6.

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).

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
29% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
CWE
CWE-306
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-wgx7-jwwm-cgjvMavenorg.apache.spark:spark-parent_2.11<2.4.62.4.6
GHSA-wgx7-jwwm-cgjvPyPIpyspark<2.4.62.4.6
PYSEC-2020-95PyPIpyspark<2.4.62.4.6

References

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