Apache Airflow: Secrets masker: pattern-based masking bounded at depth 5 returns deeply-nested registered secrets in cleartext

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-113504
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-09 10:17:05 UTC
Updated2026-11-09 13:17:05 UTC
DescriptionApache Airflow's secrets masker stopped descending into nested structures after five levels, so a secret registered with the masker — for example a Connection password or a Variable value — that appeared more than five containers deep under non-sensitive keys was shown in cleartext in task logs and rendered template fields. A user who can read task logs or rendered templates, but is not meant to see those secrets, could read them. Users are advised to upgrade to apache-airflow 3.4.0 or later. Airflow 2.x is also affected; Airflow 2 has reached end of life and will not receive a fix, so Airflow 2 users should upgrade to Apache Airflow 3.4.0 or later.

Risk And Classification

Problem Types: CWE-497 | CWE-497 CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache Airflow affected 2.1.1 3.0.0 semver Not specified
CNA Apache Software Foundation Apache Airflow affected 3.4.0 semver Not specified

References

ReferenceSourceLinkTags
www.openwall.com/lists/oss-security/2026/11/09/19 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
github.com/apache/airflow/pull/73793 [email protected] github.com
lists.apache.org/thread.html/c0bzrpq913qh7srwdmx0smvt1tgvthrr [email protected] lists.apache.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Gjoko Krstic, Zero Science Lab (en)

CNA: Jarek Potiuk (en)

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