---
id: CVE-2026-48892
title: >-
  The Config API in Apache Airflow surfaced per-key secrets-backend overrides
  (environment variables like `AIRFLOW__SECRETS__BACKEND_KWARG__SECRET_ID` and
  `AIRFLOW__WORKERS__SECRETS_BACKEND_KWARG__SECRET_ID`) as synthetic config
  options wh…
summary: >-
  The Config API in Apache Airflow surfaced per-key secrets-backend overrides
  (environment variables like `AIRFLOW__SECRETS__BACKEND_KWARG__SECRET_ID` and
  `AIRFLOW__WORKERS__SECRETS_BACKEND_KWARG__SECRET_ID`) as synthetic config
  options wh…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-200
vendor: apache
product: airflow
affected:
  - airflow < 3.3.0
patched:
  - airflow 3.3.0
published: '2026-07-07'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T15:17:36.267'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-48892'
references:
  - url: 'https://github.com/apache/airflow/pull/67622'
    label: security@apache.org
  - url: 'https://lists.apache.org/thread/pq5yy40079h6tzh3fxvw28dd8dbk72hk'
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/07/07/4'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://github.com/advisories/GHSA-9933-5rrp-mfwx'
tags:
  - nvd
  - cve.org
  - osv
  - pip
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-07-07T13:23:05.117867Z'
epss: 0.00664
epssPercentile: 0.50346
aliases:
  - PYSEC-2026-2087
  - BIT-airflow-2026-48892
  - GHSA-9933-5rrp-mfwx
ecosystem: pip
ingestedAt: '2026-07-10T18:56:50.615Z'
---

## Overview

The Config API in Apache Airflow surfaced per-key secrets-backend overrides (environment variables like `AIRFLOW__SECRETS__BACKEND_KWARG__SECRET_ID` and `AIRFLOW__WORKERS__SECRETS_BACKEND_KWARG__SECRET_ID`) as synthetic config options whose option names were not in `sensitive_config_values`, so the masker did not redact them. An authenticated UI/API user with Config read permission could retrieve plaintext secrets-backend credentials (Vault `role_id` / `secret_id`, etc.) from the Config API output. Affects deployments that configure secrets backends via per-key environment overrides. Users are advised to upgrade to `apache-airflow` 3.3.0 or later.

## Affected

- `airflow < 3.3.0`

## Remediation

Upgrade past the affected range:

- `airflow 3.3.0`

## Package advisory (CVE-2026-48892)

Affected packages:

- `apache-airflow < 3.3.0`

Patched in:

- `apache-airflow 3.3.0`

Source: https://osv.dev/vulnerability/PYSEC-2026-2087