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CVE-2023-50943: Apache Airflow: pickle deserialization vulnerability in XComs

January 24, 2024 (updated February 13, 2025)

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.

References

  • github.com/advisories/GHSA-c3c6-f2ww-xfr2
  • github.com/apache/airflow
  • github.com/apache/airflow/commit/2c4c5bc604e9ab0cc1e98f7bee7d31d566579462
  • github.com/apache/airflow/pull/36255
  • github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2024-13.yaml
  • lists.apache.org/thread/fx278v0twqzxkcts70tc04cp3f8p56pn
  • nvd.nist.gov/vuln/detail/CVE-2023-50943

Code Behaviors & Features

Detect and mitigate CVE-2023-50943 with GitLab Dependency Scanning

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Affected versions

All versions before 2.8.1rc1

Fixed versions

  • 2.8.1rc1

Solution

Upgrade to version 2.8.1rc1 or above.

Impact 7.5 HIGH

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

Learn more about CVSS

Weakness

  • CWE-502: Deserialization of Untrusted Data

Source file

pypi/apache-airflow/CVE-2023-50943.yml

Spotted a mistake? Edit the file on GitLab.

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