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HIGH severity

CVE-2018-11804 — spark-core_2.11

HIGH

CVE-2018-11804 is a high-severity (CVSS 7.5) vulnerability in org.apache.spark:spark-core_2.11. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Improper Input Validation in Apache Spark

Also known asGHSA-62g2-m955-v383
Published
Updated
Affected
2 pkgs
Patched
See advisory
Exploits
None indexed
Exploitation data as of Nov 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
5.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs93th percentile — riskier than 93% of all scored CVEsHighest risk
0.00%2.40%4.81%7.21%0.7%5.7%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

2 pkgs affected
☕org.apache.spark:spark-core_2.11☕org.apache.spark:spark-core_2.10

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Spark's Apache Maven-based build includes a convenience script, 'build/mvn', that downloads and runs a zinc server to speed up compilation. It has been included in release branches since 1.3.x, up to and including master. This server will accept connections from external hosts by default. A specially-crafted request to the zinc server could cause it to reveal information in files readable to the developer account running the build. Note that this issue does not affect end users of Spark, only developers building Spark from source code.

Affected Packages

2 total
EcosystemPackageVulnerable rangeFix
☕Mavenorg.apache.spark:spark-core_2.11≥ 1.3.0No fix
☕Mavenorg.apache.spark:spark-core_2.10≥ 1.3.0No fix

Affected Products

1 product · 2 configurations
Application
sparkapache
≥ 2.3.0 && < 2.3.3
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.spark:spark-core_2.11, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    The records we use list no patched version of org.apache.spark:spark-core_2.11 for CVE-2018-11804. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

Spark's Apache Maven-based build includes a convenience script, 'build/mvn', that downloads and runs a zinc server to speed up compilation. It has been included in release branches since 1.3.x, up to and including master. This server will accept connections from external hosts by default. A specially-crafted request to the zinc server could cause it to reveal information in files readable to the developer account running the build. Note that this issue does not affect end users of Spark, only developers building Spark from source code.
O3 Security · Impact-Aware SCA

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CVE-2018-11804: spark-core_2.11 (High 7.5)