CVE-2023-50943

HIGH7.5EPSS 0.21%

Apache Airflow: Potential pickle deserialization vulnerability in XComs

Published: 1/24/2024Modified: 5/20/2025

Also known as:GHSA-c3c6-f2ww-xfr2BIT-airflow-2023-50943PYSEC-2024-13

Description

Apache Airflow, versions before 2.8.1, have a vulnerability that allows a potential attacker to poison the XCom data by bypassing the protection of "enable_xcom_pickling=False" configuration setting resulting in poisoned data after XCom deserialization. This vulnerability is considered low since it requires a DAG author to exploit it. Users are recommended to upgrade to version 2.8.1 or later, which fixes this issue.

Affected packages (3)

Bitnami/airflowfrom 0, < 2.8.1
PyPI/apache-airflowfrom 0, < 2.8.1rc1
PyPI/apache-airflowfrom 0, < 2.8.1

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 4.0	—	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
osv	CVSS 3.1	HIGH7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References (7)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-50943
PATCHhttps://github.com/apache/airflow
WEBhttps://github.com/apache/airflow/commit/2c4c5bc604e9ab0cc1e98f7bee7d31d566579462
WEBhttps://github.com/apache/airflow/pull/36255
WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2024-13.yaml
WEBhttps://lists.apache.org/thread/fx278v0twqzxkcts70tc04cp3f8p56pn
WEBhttp://www.openwall.com/lists/oss-security/2024/01/24/4