CVE-2023-50943

Apache Airflow: Potential pickle deserialization vulnerability in XComs

HIGH 7.5

At a glance

Source: NVD
EPSS: EPSS 1.22 % · percentile 69 (2026-10-28)
State: PUBLISHED
Published: 2024-01-24 12:57 UTC
Updated: 2025-05-30 14:16 UTC
Assigner: apache
NVD status: Modified

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.

Weaknesses (CWE)

CWE-502 — Deserialization of Untrusted Data

References

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	CISA-ADP
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	NVD · nvd@nist.gov (Primary)
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Advisories

GHSA-c3c6-f2ww-xfr2 — Apache Airflow: pickle deserialization vulnerability in XComs
PYSEC-2024-13 — 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

European references

ENISA EUVD · EUVD-2024-0004
GCVE · GCVE-0-2023-50943

Affected configurations (NVD CPE)

cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:* < 2.8.1

Affected products

Product	Versions
Apache Software Foundation · Apache Airflow	affected 0 < 2.8.1

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD