Vulnerability in Apache Spark

CVE-2018-17190

In all versions of Apache Spark, its standalone resource manager accepts code to execute on a 'master' host, that then runs that code on 'worker' hosts. The master itself does not, by design, execute user code. A specially-crafted request to the master can, however, cause the master to execute code too. Note that this does not affect standalone clusters with authentication enabled. While the master host typically has less outbound access to other resources than a worker, the execution of code on the master is nevertheless unexpected.

EPSS: 0.088 (94.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-17190?
CVE-2018-17190 is a critical-severity vulnerability in Apache Spark. CVSS score: 9.8/10. Published 2018-11-19.
How severe is CVE-2018-17190?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-17190 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.