Dashboard / CVE-2026-45360

CVE-2026-45360

HIGH
MEDIUM Priority: 0.05 BB Relevance: 75/100
Published: 2026-06-01 Modified: 2026-11-03 First seen: 2026-11-03 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: Low
I: Low
A: Low

Description

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.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
Apache Software Foundation Apache Airflow 0 < 3.0.0
Apache Software Foundation Apache Airflow 3.0.0 < 3.2.2
apache airflow < 3.2.2

References & Advisories (3)

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS — Exploitation Probability

0.68%
Raw Score 0.006760
Percentile 52.2%
Date 2026-11-02

Intelligence Sources

mitre ref →
nvd ref →

External Links