CVE-2023-40195Network attack vector

Authenticated code execution via malicious Spark server

Published Aug 28, 2023 · Updated Apr 23, 2025

Deserialization in Apache Airflow Spark Provider before 4.1.3 allows remote authenticated users to execute code through a malicious Spark server. The Spark hook accepts an attacker-controlled host URL, connects the Airflow node to that endpoint, and deserializes untrusted server data. Access requires an Airflow account authorized to configure Spark hooks; successful exploitation runs code with the Airflow process's access.

CVSS severity8.8
High
EPSS probability1.86%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in Apache Airflow Spark Provider before 4.1.3 allows remote authenticated users to execute code through a malicious Spark server. The Spark hook accepts an attacker-controlled host URL, connects the Airflow node to that endpoint, and deserializes untrusted server data. Access requires an Airflow account authorized to configure Spark hooks; successful exploitation runs code with the Airflow process's access.

The record

CVE
CVE-2023-40195
Published
Aug 28, 2023
Updated
Apr 23, 2025
Vendor
The Apache Software Foundation
Product
apache-airflow-providers-apache-spark
Classifications
CWE-502, CWE-829, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <4.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · apache-airflow-providers-apache-sparkversion=0 <4.1.3

Published CVSS scores

8.7GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CWE-829Inclusion of Functionality from Untrusted Control Sphere
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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