CVE-2026-82337
HIGH
MEDIUM
Priority: 0.04
BB Relevance:
75/100
Published: 2026-11-09
Modified: 2026-11-12
First seen: 2026-11-09
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 rebuilt deadline alert fields through generic deserialization, which imports and instantiates the class named in the serialized Dag, in the scheduler and API server. A Dag author could cause classes within Airflow's deserialization allow list to be constructed in those processes with arguments they control. Deployments whose Dags use deadline alerts are affected. This is an incomplete fix of CVE-2026-45360, which only hardened the `reference` field; deployments that applied that fix remain affected through the `callback` and `interval` fields. Users of apache-airflow are recommended to upgrade to 3.4.0 or later.
Weakness Classification (1)
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| Apache Software Foundation | Apache Airflow | 0 < 3.4.0 |
| Apache Software Foundation | Apache Airflow | 0 < 3.4.0 |
References & Advisories (4)
vendor-advisory
related
patch
patch