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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.79%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 8.79% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- apache/spark
- Source
- security@apache.org
EPSS moved from 6.9% on 21 September 2026 to 8.8% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://www.securityfocus.com/bid/105976Third Party Advisory, VDB Entry
- https://lists.apache.org/thread.html/341c3187f15cdb0d353261d2bfecf2324d56cb7db1339bfc7b30f6e5%40%3Cdev.spark.apache.org%3E
- https://security.gentoo.org/glsa/201903-21Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2020.html
- http://www.securityfocus.com/bid/105976Third Party Advisory, VDB Entry
- https://lists.apache.org/thread.html/341c3187f15cdb0d353261d2bfecf2324d56cb7db1339bfc7b30f6e5%40%3Cdev.spark.apache.org%3E
- https://security.gentoo.org/glsa/201903-21Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2020.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.