CVE-2025-66388

Name: CVE-2025-66388
Creator: NVD / NIST
Published: 2025-12-15T12:15:40.573+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2025-66388 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.41%

32.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-201

Affected Software

Vendor	Product	Versions
Apache	Airflow	>= 3.1.0, < 3.1.4

References

https://github.com/apache/airflow/pull/58772Issue Tracking
https://lists.apache.org/thread/mv9hzsx8grjf7gdlkxwppnpbtogtls2gMailing List, Vendor Advisory
http://www.openwall.com/lists/oss-security/2025/12/12/1Mailing List, Third Party Advisory

Timeline

Published: Dec 15, 2025
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2025-66388?

How severe is CVE-2025-66388?

CVE-2025-66388 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2025-66388?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-66388?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST