CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2021-38296
High (7.5). EPSS 1.8% chance of exploitation in the next 30 days. Fixed in org.apache.spark:spark-core 3.1.3.
Apache Spark supports end-to-end encryption of RPC connections via "spark.authenticate" and "spark.network.crypto.enabled". In versions 3.1.2 and earlier, it uses a bespoke mutual authentication protocol that allows for full encryption key recovery. After an initial interactive attack, this would allow someone to decrypt plaintext traffic offline. Note that this does not affect security mechanisms controlled by "spark.authenticate.enableSaslEncryption", "spark.io.encryption.enabled", "spark.ssl", "spark.ui.strictTransportSecurity". Update to Apache Spark 3.1.3 or later
Severity
- EPSS
- 1.8% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-31)
- CWE
- CWE-294
- Published
- Modified
- Record from
- the NVD, synced
Affected
- apache:spark
- oracle:financial_services_crime_and_compliance_management_studio
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-9rr6-jpg7-9jg6 | Maven | org.apache.spark:spark-core | <3.1.3 | 3.1.3 |
| GHSA-9rr6-jpg7-9jg6 | PyPI | pyspark | <3.1.3 | 3.1.3 |
| PYSEC-2022-186 | PyPI | pyspark | <3.1.3 | 3.1.3 |