CVE-2026-45360

Scheduler code execution via arbitrary class import

Published Jun 1, 2026 · Updated Jun 1, 2026

Deserialization in Apache Airflow before 3.2.2 allows attackers to execute code in the scheduler through a crafted DAG. SerializedCustomReference.deserialize_reference passes a serialized __class_path value to import_string and instantiates the resolved class with a live SQLAlchemy session instead of restricting resolution to registered plugins. Exploitation requires DAG-author-controlled state to reach the scheduler and crosses a trust boundary only where DAG authors are less trusted than that process.

CVSS severity7.3
High
EPSS probability0.68%
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

Deserialization in Apache Airflow before 3.2.2 allows attackers to execute code in the scheduler through a crafted DAG. SerializedCustomReference.deserialize_reference passes a serialized __class_path value to import_string and instantiates the resolved class with a live SQLAlchemy session instead of restricting resolution to registered plugins. Exploitation requires DAG-author-controlled state to reach the scheduler and crosses a trust boundary only where DAG authors are less trusted than that process.

The record

CVE
CVE-2026-45360
Published
Jun 1, 2026
Updated
Jun 1, 2026
Vendor
The Apache Software Foundation
Product
Apache Airflow
Classifications
CWE-502, T1059.006
Attack vector
Unavailable
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 1, 2026Record 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=0 <3.2.2

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Airflowversion=0 <3.2.2

Published CVSS scores

7.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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)
VectorUnavailable
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1059.006Python

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