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MEDIUM severity

CVE-2023-46674 — elasticsearch-hadoop

MEDIUM

CVE-2023-46674 is a medium-severity (CVSS 6) Deserialization of Untrusted Data vulnerability in org.elasticsearch:elasticsearch-hadoop. A fix is available for org.elasticsearch:elasticsearch-hadoop — see the affected versions and patch details below.

Elasticsearch-hadoop Unsafe Deserialization

Also known asBIT-elasticsearch-2023-46674GHSA-rv74-m283-5j95
Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2023-46674.

EPSS Exploitation Probability

via FIRST.org ↗
0.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs16th percentile — riskier than 16% of all scored CVEsHighest risk
0.00%0.25%0.50%0.74%0.1%0.2%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.elasticsearch:elasticsearch-hadoop☕org.elasticsearch:elasticsearch-hadoop

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

An issue was identified that allowed the unsafe deserialization of java objects from hadoop or spark configuration properties that could have been modified by authenticated users. Elastic would like to thank Yakov Shafranovich, with Amazon Web Services for reporting this issue.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.elasticsearch:elasticsearch-hadoopall versions7.17.11org.elasticsearch:elasticsearch-hadoop:7.17.11
☕Mavenorg.elasticsearch:elasticsearch-hadoop≥ 8.0.0&&< 8.9.08.9.0org.elasticsearch:elasticsearch-hadoop:8.9.0

Affected Products

1 product · 2 configurations
Application
elasticsearchelastic
≥ 8.0.0 && < 8.9.0
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.elasticsearch:elasticsearch-hadoop, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.elasticsearch:elasticsearch-hadoop to 7.17.11 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-46674 is resolved across your whole dependency graph.

  3. Workarounds

    Do not deserialise data from untrusted sources: where the format allows it, restrict deserialisation to an explicit allowlist of expected types, and prefer a data-only format (JSON, Protobuf) over one that can reconstruct arbitrary objects until you can upgrade.

Frequently Asked Questions

An issue was identified that allowed the unsafe deserialization of java objects from hadoop or spark configuration properties that could have been modified by authenticated users. Elastic would like to thank Yakov Shafranovich, with Amazon Web Services for reporting this issue.
O3 Security · Impact-Aware SCA

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CVE-2023-46674: elasticsearch-hadoop — Fixed in 7.17.11