CVE-2026-33858

Apache Airflow: Unsafe Deserialization via Legacy Serialization Keys (type/var) Bypass in XCom API

CVSS 8.8 HIGHEPSS 0.6%CWE-502

Vexday Risk Score

21Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 8.8EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Ciclo de vida

13 abr 2026Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low. Users are recommended to upgrade to Apache Airflow 3.2.0, which resolves this issue.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Productos afectados

Apache Software Foundation · Apache Airflow

Referencias

https://github.com/apache/airflow/pull/64148 https://lists.apache.org/thread/1npt3o2x81s0gw9tmfcv4n7p1z9hdmy0 http://www.openwall.com/lists/oss-security/2026/04/13/7

Apache Airflow: Unsafe Deserialization via Legacy Serialization Keys (__type/__var) Bypass in XCom API

Apache Airflow: Unsafe Deserialization via Legacy Serialization Keys (type/var) Bypass in XCom API