GHSA-mc4f-r875-v87w

Suggest an improvement
Source
https://github.com/advisories/GHSA-mc4f-r875-v87w
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-mc4f-r875-v87w/GHSA-mc4f-r875-v87w.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-mc4f-r875-v87w
Aliases
Downstream
Published
2026-04-13T15:31:43Z
Modified
2026-04-17T04:56:52.922869761Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Apache Airflow: Unsafe Deserialization via Legacy Serialization Keys (__type/__var) Bypass in XCom API
Details

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.

Database specific 
{
    "github_reviewed": true,
    "nvd_published_at": "2026-04-13T15:17:33Z",
    "cwe_ids": [
        "CWE-502"
    ],
    "github_reviewed_at": "2026-04-14T23:17:35Z",
    "severity": "HIGH"
}
References

Affected packages

PyPI / apache-airflow

Package

Name
apache-airflow
View open source insights on deps.dev
Purl
pkg:pypi/apache-airflow

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.1.8
Fixed
3.2.0

Affected versions

3.*
3.1.8
3.2.0b1
3.2.0b2
3.2.0rc1
3.2.0rc2

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-mc4f-r875-v87w/GHSA-mc4f-r875-v87w.json"