Apache Airflow: Values of a list-shaped Variable are not masked in task logs and the Rendered Templates UI (CVE-2026-68970) | HOL Guard CVE

Medium · CVSS 6.5CVE-2026-68970

Apache Airflow: Values of a list-shaped Variable are not masked in task logs and the Rendered Templates UI

Answer in brief

CVE-2026-68970 records a Medium severity (CVSS 6.5) vulnerability in Apache Airflow: Values of a list-shaped Variable are not masked in task logs and the Rendered Templates UI. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/Apache Airflow (generic), apache-airflow (pypi). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 12, 2026Updated Sep 16, 2026Source checked Sep 26, 2026First seen by HOL Aug 12, 2026Material review Sep 16, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.5
Exploitation: Not marked as known exploited
Affected software: 3 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Apache Software Foundation/Apache Airflow (generic), apache-airflow (pypi). Check affected ranges and fixed versions before updating.

Affected products and reported versions
Product	Affected versions	Fixed versions
cpe:2.3:a:apache:airflow::::::::	Not reported	Not reported

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Apache Software Foundation/Apache Airflowgeneric	>=0 <3.3.1	3.3.1
apache-airflowpypi	>=0 <3.3.1	3.3.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for Apache Software Foundation/Apache Airflow, apache-airflow.
Review the reported fix. Update Apache Software Foundation/Apache Airflow to 3.3.1; apache-airflow to 3.3.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 12, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 12, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.