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CVE-2019-10099

HIGH
7.5
CVSS Score
Published: August 7, 2019 at 04:18 PM UTC
Updated: June 17, 2026 at 02:10 AM UTC
1 product affected across 1 vendorSpark

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Spark· Apachemaven
95%
v ≤ 2.3.21.0.2 ≤ v ≤ 1.6.32.0.0 ≤ v ≤ 2.0.22.1.0 ≤ v ≤ 2.1.32.2.0 ≤ v ≤ 2.2.22.3.0 ≤ v < 2.3.2
Affected range stops below 2.3.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

x_refsource_MISC
Source: [email protected]
https://lists.apache.org/thread.html/c2a39c207421797f82823a8aff488dcd332d9544038307bf69a2ba9e%40%3Cuser.spark.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/ra216b7b0dd82a2c12c2df9d6095e689eb3f3d28164e6b6587da69fae%40%3Ccommits.spark.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/rabe1d47e2bf8b8f6d9f3068c8d2679731d57fa73b3a7ed1fa82406d2%40%3Cissues.spark.apache.org%3E

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-312

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