Apache Airflow's secrets masker stopped descending into nested structures after five levels, so a secret registered
Source GCVE Database
Not known to be exploited : upgrade to 3.0.0 soon.
Data as of 9 Nov 2026, 13:33 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in 3.0.0, 3.4.0
Exploitation evidence
Disclosed: evidence found.
CVE published 9 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.
What to do
Upgrade Apache Airflow and apache-airflow to 3.0.0; Apache Airflow and apache-airflow-core to 3.4.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apache Airflowapache-airflow | Affected
| Fixed in
|
| Apache Airflowapache-airflow-core | Affected
| Fixed in
|
PyPIapache-airflowpkg:pypi/apache-airflowOther threats | Affected
| Fixed in
|
PyPIapache-airflow-corepkg:pypi/apache-airflow-coreOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should upgrade to Apache Airflow version 3.4.0 or later, where this issue has been fixed. No other mitigation actions are specified.
Description
Apache Airflow's secrets masker failed to mask secrets nested deeper than five levels in data structures, causing sensitive information such as Connection passwords or Variable values to be exposed in task logs and rendered templates. This exposure allows users who can read these logs or templates but should not have access to the secrets to view them in cleartext. The issue is resolved in Apache Airflow version 3.4.0 and later.