CVE-2025-68438Network attack vector

Secret disclosure via incomplete template masking

Published Jan 16, 2026 · Updated Jan 16, 2026

Information disclosure in Apache Airflow 3.1.0 through 3.1.5 allows remote attackers to view secrets in rendered templates. Serialization truncates oversized rendered fields with a secrets masker that omits user-registered mask_secret() patterns, leaving matching values cleartext. Exposure requires a rendered field to exceed max_templated_field_length; the reported consequence is limited to secret disclosure in the Rendered Templates UI.

CVSS severity7.5
High
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Information disclosure in Apache Airflow 3.1.0 through 3.1.5 allows remote attackers to view secrets in rendered templates. Serialization truncates oversized rendered fields with a secrets masker that omits user-registered mask_secret() patterns, leaving matching values cleartext. Exposure requires a rendered field to exceed max_templated_field_length; the reported consequence is limited to secret disclosure in the Rendered Templates UI.

The record

CVE
CVE-2025-68438
Published
Jan 16, 2026
Updated
Jan 16, 2026
Vendor
The Apache Software Foundation
Product
Apache Airflow
Classifications
CWE-200, T1552
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.1.0 <3.1.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Airflowversion=3.1.0 <3.1.6

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1552Unsecured Credentials

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo