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  4. CVE 2026 38743 apache airflow dags endpoint might provide access
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Back to active CVEs
Medium · CVSS 4.3CVE-2026-38743

Apache Airflow: Dags endpoint might provide access to otherwise inaccessible entitiesCVE-2026-38743

Answer in brief

CVE-2026-38743 records a Medium severity (CVSS 4.3) vulnerability in Apache Airflow: Dags endpoint might provide access to otherwise inaccessible entities. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/apache-airflow (generic), Apache Software Foundation/apache-airflow-core (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

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

Published Apr 24, 2026Updated Nov 3, 2026Source checked Nov 3, 2026First seen by HOL Oct 28, 2026Material review Nov 3, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 4.3
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 4.3. 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 Software Foundation/apache-airflow-core (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Apache Software Foundation/apache-airflowgeneric>=0 <3.0.03.0.0
Apache Software Foundation/apache-airflow-coregeneric>=3.0.0 <3.2.13.2.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Apache Software Foundation/apache-airflow, Apache Software Foundation/apache-airflow-core.
  2. 2Review the reported fix. Update Apache Software Foundation/apache-airflow to 3.0.0; Apache Software Foundation/apache-airflow-core to 3.2.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Apr 24, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 3, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 28, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencelists.apache.org
  • Source referenceopenwall.com
Upstream source description

The authenticated /ui/dags endpoint did not enforce per-DAG access control on embedded Human-in-the-Loop (HITL) and TaskInstance records: a logged-in Airflow user with read access to at least one DAG could retrieve HITL prompts (including their request parameters) and full TaskInstance details for DAGs outside their authorized scope. Because HITL prompts and TaskInstance fields routinely carry operator parameters and free-form context attached to a task, the leak widens visibility of DAG-run data beyond the intended per-DAG RBAC boundary for every authenticated user. Users are recommended to upgrade to version 3.2.1 , which fixes this issue.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-1220
Source
CVE List V5
Source checked
Nov 3, 2026
References
3 linked sources
Open source record