Vulnerability · Published Jan 24, 2024 · Assigned by apache

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

High 7.5

In plain English

A high-severity unsafe deserialization in Apache Airflow from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.2%top 31.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 & fixed versions

EcosystemPackageFixed inAdvisory
PyPIapache-airflow2.8.1rc1GHSA-c3c6-f2ww-xfr2
PyPIapache-airflow2.8.1PYSEC-2024-13

Affected products (as reported)

VendorProductVersions
Apache Software Foundation Apache Airflow 0 – before 2.8.1

Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References