Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low.


Users are recommended to upgrade to Apache Airflow 3.2.0, which resolves this issue.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 13 Apr 2026 17:30:00 +0000

Type Values Removed Values Added
References

Mon, 13 Apr 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 13 Apr 2026 15:00:00 +0000

Type Values Removed Values Added
Description Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low. Users are recommended to upgrade to Apache Airflow 3.2.0, which resolves this issue.
Title Apache Airflow: Unsafe Deserialization via Legacy Serialization Keys (__type/__var) Bypass in XCom API
Weaknesses CWE-502
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-04-13T16:26:57.075Z

Reserved: 2026-03-24T09:30:31.093Z

Link: CVE-2026-33858

cve-icon Vulnrichment

Updated: 2026-04-13T16:26:57.075Z

cve-icon NVD

Status : Received

Published: 2026-04-13T15:17:33.343

Modified: 2026-04-13T17:16:28.600

Link: CVE-2026-33858

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses