CVE-2026-33858 (GCVE-0-2026-33858)
Vulnerability from cvelistv5 – Published: 2026-04-13 14:36 – Updated: 2026-04-14 03:55
VLAI
EPSS
VEX
Title
Apache Airflow: Unsafe Deserialization via Legacy Serialization Keys (__type/__var) Bypass in XCom API
Summary
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.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-13 00:00 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Apache Software Foundation | Apache Airflow |
Affected:
3.1.8 , < 3.2.0
(semver)
|
guessed |
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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