CVE-2026-32690: Apache airflow core Apache Airflow Exposes Secrets Vulnerability

LOW
Advisory Identifier: GHSA-w9r4-94fj-xp69
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CVSS 3.7
CWE-668
Published
Advisory Summary

CVE-2026-32690 is a LOW (CVSS 3.7) apache airflow exposes secrets vulnerability (CWE-668: Exposure of Resource to Wrong Sphere) affecting Apache airflow core libraries in the PyPI ecosystem. The issue involves apache airflow exposes secrets in variables saved as json dictionaries. Remediation is available by upgrading affected packages to version 3.2.0.

CVE-2026-32690 at a Glance

CVE Identifier CVE-2026-32690
GHSA Identifier GHSA-w9r4-94fj-xp69
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-668: Exposure of Resource to Wrong Sphere
Affected Product Apache airflow core
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 3.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-32690

To remediate this vulnerability, upgrade all affected Apache airflow core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

apache-airflow-core fixed: 3.2.0 
pip install apache-airflow-core>=3.2.0
apache-airflow fixed: 3.2.0 
pip install apache-airflow>=3.2.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show apache-airflow-core

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-32690, inspect your installed packages using pip:

pip show apache-airflow-core

Analyze the terminal output to locate any version of Apache airflow core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.2.0), your application is affected.

Note: The pip show apache-airflow-core command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-668: Exposure of Resource to Wrong Sphere, where the product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource. In Apache airflow core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Secrets in Variables saved as JSON dictionaries were not properly redacted - in case the variables were retrieved by the user the secrets stored as nested fields were not masked. If developers do not store variables with sensitive values in JSON form, their projects are not affected. Otherwise upgrade to the fixed version, Apache Airflow 3.2.0.

CVE-2026-32690 Affected Apache airflow core Versions

2 component(s)
Fixed Versions:
3.2.0
Product / Package Ecosystem Affected Versions Fixed Version
apache-airflow-core
pypi/apache-airflow-core
PyPI
≥ 3.0.0
< 3.2.0
3.2.0
apache-airflow
pypi/apache-airflow
PyPI
≥ 3.0.0
< 3.2.0
3.2.0

References

NVD — CVE-2026-32690 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32690
Apache airflow core Source Repository REPOSITORY
https://github.com/apache/airflow/pull/63480
Apache airflow core Source Repository REPOSITORY
https://github.com/apache/airflow
Apache airflow core Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-19.yaml
lists.apache.org/thread/7rnzxofntczn... WEB
https://lists.apache.org/thread/7rnzxofntcznqxnhsmjvvlvygwph7rn5
Apache airflow core Security Information SECURITY
http://www.openwall.com/lists/oss-security/2026/04/17/6

Frequently Asked Questions

What is CVE-2026-32690?
CVE-2026-32690 is a security vulnerability in Apache airflow core involving Apache Airflow Exposes Secrets in Variables Saved as JSON Dictionaries under CWE-668: Exposure of Resource to Wrong Sphere.
Which Apache airflow core versions are affected?
Affected versions include releases prior to 3.2.0 across affected packages: apache-airflow-core, apache-airflow.
What version fixes CVE-2026-32690?
Upgrading to 3.2.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is apache-airflow-core affected?
Yes, apache-airflow-core is affected in releases prior to 3.2.0. Upgrade your dependency to 3.2.0 or later.
Is apache-airflow affected?
Yes, apache-airflow is affected in releases prior to 3.2.0. Upgrade your dependency to 3.2.0 or later.
What is the CVSS score of CVE-2026-32690?
CVE-2026-32690 has a CVSS v3.1 base score of 3.7 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2026-32690?
CVE-2026-32690 is classified under CWE-668: Exposure of Resource to Wrong Sphere (The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.).
How can I check PyPI dependencies for CVE-2026-32690?
Run the dependency tree command: 'pip show apache-airflow-core'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-w9r4-94fj-xp69",
  "modified" : "2026-06-05T14:30:47Z",
  "published" : "2026-04-18T09:30:20Z",
  "aliases" : [ "CVE-2026-32690" ],
  "summary" : "Apache Airflow Exposes Secrets in Variables Saved as JSON Dictionaries",
  "details" : "Secrets in Variables saved as JSON dictionaries were not properly redacted - in case the variables were retrieved by the user the secrets stored as nested fields were not masked.\n\nIf developers do not store variables with sensitive values in JSON form, their projects are not affected. Otherwise upgrade to the fixed version, Apache Airflow 3.2.0.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "apache-airflow-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.2.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "apache-airflow"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-32690"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/airflow/pull/63480"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/airflow"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-19.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/7rnzxofntcznqxnhsmjvvlvygwph7rn5"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2026/04/17/6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-668" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-22T17:25:55Z",
    "nvd_published_at" : "2026-04-18T07:16:10Z"
  }
}