CVE-2023-51702Network attack vector

Kubernetes credential disclosure via plaintext metadata and logs

Published Jan 24, 2024 · Updated Jun 11, 2025

Cleartext storage in Apache Airflow and its CNCF Kubernetes provider allows attackers with metadata or log access to obtain cluster credentials. The worker serializes a configured kubeconfig file into unencrypted task metadata, and Airflow 2.3.0 through 2.6.0 also writes that dictionary to triggerer logs without masking. The issue requires deferrable mode with a kubeconfig path; access to the metadata or logs exposes credentials usable against the Kubernetes cluster.

CVSS severity6.5
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cleartext storage in Apache Airflow and its CNCF Kubernetes provider allows attackers with metadata or log access to obtain cluster credentials. The worker serializes a configured kubeconfig file into unencrypted task metadata, and Airflow 2.3.0 through 2.6.0 also writes that dictionary to triggerer logs without masking. The issue requires deferrable mode with a kubeconfig path; access to the metadata or logs exposes credentials usable against the Kubernetes cluster.

The record

CVE
CVE-2023-51702
Published
Jan 24, 2024
Updated
Jun 11, 2025
Vendor
The Apache Software Foundation
Product
Apache Airflow CNCF Kubernetes Provider
Classifications
CWE-312, CWE-532, T1552
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 11, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=5.2.0 <7.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Airflow CNCF Kubernetes Providerversion=5.2.0 <7.0.0
The Apache Software Foundation · Apache Airflowversion=2.3.0 <2.6.1

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information
CWE-532Insertion of Sensitive Information into Log File
T1552Unsecured Credentials

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo