Apache Airflow: Values of a list-shaped Variable are not masked in task logs and the Rendered Templates UI
Apache Airflow's Task SDK did not mask the contents of a Variable whose JSON value is a list, so secrets stored in that shape appeared in cleartext in task logs and in the Rendered Templates UI. Masking was applied only when the deserialized value was a string or a dict; a list at the top level matched neither and was returned unmasked. Any authenticated user able to read the logs or rendered templates of a task that references such a Variable could recover the values, with no special configuration required. This is the list-shaped counterpart of CVE-2026-59244, whose fix covered the dict case only, so deployments that upgraded in response to that advisory remain affected and must upgrade again. Users are advised to upgrade to apache-airflow 3.3.1 or later.
BIT-airflow-2026-68970
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:BIT-airflow-2026-68970
airflow
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 3.3.1
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "SEMVER",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.3.1"
}
]
}
],
"package": {
"name": "airflow",
"purl": "pkg:bitnami/airflow",
"ecosystem": "Bitnami"
},
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
}
],
"database_specific": {
"source": "https://github.com/bitnami/vulndb/tree/main/data/airflow/BIT-airflow-2026-68970.json"
}
}
]- Related CVEs
- CVE-2026-68970
Source reference:
/aliases
Publisher severity
medium
Source reference: /database_specific/severity
- Event
- #72784 · Revision 1
- Added to Heist Feed
- Publisher date