PT-2024-1306 · Apache · Apache Airflow

Hussein Awala + 1 · Published 2024-01-24 · Updated 2026-02-20 · CVE-2023-50943

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Apache Airflow versions prior to 2.8.1

Description The issue is related to the deserialization mechanism in Apache Airflow, allowing a potential attacker to poison the XCom data by bypassing the protection of the enable xcom pickling=False configuration setting, resulting in poisoned data after XCom deserialization. This issue is considered low severity as it requires a DAG author to exploit it.

Recommendations To resolve the issue, users are recommended to upgrade to version 2.8.1 or later, which fixes this issue. As a temporary workaround, consider disabling the enable xcom pickling setting until a patch is available. Restrict access to the XCom data to minimize the risk of exploitation. Avoid using the enable xcom pickling=False configuration setting in the affected API endpoints until the issue is resolved.

Fix

DoS

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

BDU:2024-00754

BIT-AIRFLOW-2023-50943

CVE-2023-50943

GHSA-C3C6-F2WW-XFR2

PYSEC-2024-13

Affected Products

Apache Airflow

References · 20

• https://github.com/apache/airflow/pull/36255 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-50943 · Security Note
• https://osv.dev/vulnerability/GHSA-c3c6-f2ww-xfr2 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-APP-PYPI-CVE-2023-50943 · Vendor Advisory
• https://lists.apache.org/thread/fx278v0twqzxkcts70tc04cp3f8p56pn · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2024-13 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-50943 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-airflow-2023-50943 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-00754 · Security Note
• https://github.com/apache/airflow · Note
• https://github.com/apache/airflow/commit/2c4c5bc604e9ab0cc1e98f7bee7d31d566579462 · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2024-13.yaml · Note
• https://twitter.com/CVEnew/status/1750146337776054554 · Twitter Post
• https://twitter.com/oss_security/status/1750142508296806776 · Twitter Post
• https://t.me/cvenotify/68530 · Telegram Post