GHSA-2r5m-76wx-56gx

Suggest an improvement
Source
https://github.com/advisories/GHSA-2r5m-76wx-56gx
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-2r5m-76wx-56gx/GHSA-2r5m-76wx-56gx.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-2r5m-76wx-56gx
Aliases
Downstream
CGA (4)
ECHO (1)
MINI (2)
Published
2026-06-01T09:31:14Z
Modified
2026-09-10T03:51:07Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
Summary
Apache Airflow Vulnerable to Deserialization of Untrusted Data
Details

Apache Airflow's scheduler-side deadline-reference decoder (SerializedCustomReference.deserialize_reference) imported and dispatched arbitrary class paths drawn from DAG-author-controlled serialized state without an allowlist or plugin-registry gate. A DAG author whose code reaches the scheduler — the default on single-host deployments where the DAG bundle is importable from the scheduler process — could embed a custom DeadlineReference whose serialized form named an attacker-controlled module path, causing the scheduler to import_string(...) and instantiate that class with a live SQLAlchemy session attached. Affects deployments where DAG-author code is less trusted than the scheduler process. Users are advised to upgrade to apache-airflow 3.2.2 or later.

Database specific 
{
    "cwe_ids":  [
        "CWE-502"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-07-09T21:00:55Z",
    "nvd_published_at":  "2026-06-01T09:16:19Z",
    "severity":  "HIGH"
}
References

Affected packages

PyPI / apache-airflow

Package

Name
apache-airflow
View open source insights on deps.dev
Purl
pkg:pypi/apache-airflow

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.2.0
Fixed
3.2.2

Affected versions

3.*
3.2.0
3.2.1rc1
3.2.1rc2
3.2.1rc3
3.2.1
3.2.2rc1
3.2.2rc2
3.2.2rc3

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-2r5m-76wx-56gx/GHSA-2r5m-76wx-56gx.json"