CVE-2023-50943: Apache Airflow: Potential pickle deserialization vulnerability in XComs
First published: Wed Jan 24 2024(Updated: )
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.
Credit: security@apache.org security@apache.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apache Airflow | <2.8.1 | |
| pip/apache-airflow | >=0<2.8.1rc1 | 2.8.1rc1 |
| <2.8.1 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2024/01/24/4
- https://github.com/apache/airflow/pull/36255
- https://lists.apache.org/thread/fx278v0twqzxkcts70tc04cp3f8p56pn
- https://nvd.nist.gov/vuln/detail/CVE-2023-50943
- https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2024-13.yaml
- https://github.com/advisories/GHSA-c3c6-f2ww-xfr2 (Advisory)
- https://github.com/apache/airflow/commit/2c4c5bc604e9ab0cc1e98f7bee7d31d566579462
Frequently Asked Questions
What is the severity of CVE-2023-50943?
CVE-2023-50943 is considered to be a significant vulnerability due to its potential for data poisoning.
How do I fix CVE-2023-50943?
To fix CVE-2023-50943, upgrade to Apache Airflow version 2.8.1 or later.
What configurations are affected by CVE-2023-50943?
CVE-2023-50943 affects the configuration setting of "enable_xcom_pickling=False".
What type of attack is possible with CVE-2023-50943?
CVE-2023-50943 allows attackers to poison XCom data through deserialization vulnerabilities.
Which versions of Apache Airflow are impacted by CVE-2023-50943?
All versions of Apache Airflow before 2.8.1 are impacted by CVE-2023-50943.
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