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Back to active CVEs
Medium · CVSS 4.3CVE-2025-66388GHSA-FV47-PQH6-WXGQ

Apache Airflow: Secrets in rendered templates not redacted properly and exposed in the UICVE-2025-66388

Answer in brief

CVE-2025-66388 records a Medium severity (CVSS 4.3) vulnerability in Apache Airflow: Secrets in rendered templates not redacted properly and exposed in the UI. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/apache-airflow-core (generic), apache-airflow (pip). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

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

Published Dec 15, 2025Updated Nov 3, 2026Source checked Nov 3, 2026First seen by HOL Jun 11, 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-core (generic), apache-airflow (pip). 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-airflow-coregeneric>=3.1.0 <3.1.43.1.4
apache-airflowpip>=3.1.0,<3.1.43.1.5

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Apache Software Foundation/apache-airflow-core, apache-airflow.
  2. 2Review the reported fix. Update Apache Software Foundation/apache-airflow-core to 3.1.4; apache-airflow to 3.1.5 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Dec 15, 2025

    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

    Jun 11, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencelists.apache.org
  • Source referenceopenwall.com
  • NVD vulnerability recordnvd.nist.gov
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

A vulnerability in Apache Airflow allowed authenticated UI users to view secret values in rendered templates due to secrets not being properly redacted, potentially exposing secrets to users without the appropriate authorization. Users are recommended to upgrade to version 3.1.4, which fixes this issue.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Secret Exfiltration
EPSS
Not reported
CWE IDs
CWE-201
Source
CVE List V5
Source checked
Nov 3, 2026
References
7 linked sources
Open source record