Apache Airflow ODBC Provider, Apache Airflow MSSQL Provider Improper Input Validation vulnerability

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

4.3 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS

• CVE-2023-35798: 1.26% estimated exploitation activity in the next 30 days; percentile 69.70 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Input Validation vulnerability in Apache Software Foundation Apache Airflow ODBC Provider, Apache Software Foundation Apache Airflow MSSQL Provider.This vulnerability is considered low since it requires DAG code to use getsqlalchemyconnection and someone with access to connection resources specifically updating the connection to exploit it. This issue affects Apache Airflow ODBC Provider: before 4.0.0; Apache Airflow MSSQL Provider: before 3.4.1. It is recommended to upgrade to a version that is not affected

Published by the source

27 Jun 2023, 12:30 UTC

Last modified by the source

13 Jul 2026, 16:43 UTC

Source last checked

26 Oct 2026, 13:12 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-q57w-826p-46jr

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-q57w-826p-46jr

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# Patch Next advisory brief: CVE-2023-35798

Advisory: Apache Airflow ODBC Provider, Apache Airflow MSSQL Provider Improper Input Validation vulnerability
IDs: CVE-2023-35798, GHSA-q57w-826p-46jr
Record: https://patchnext.com/advisories/cve-2023-35798 (revision 2, source checked 26 Oct 2026, 13:12 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 4.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: apache-airflow-providers-microsoft-mssql 3.4.1; apache-airflow-providers-odbc 4.0.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI apache-airflow-providers-microsoft-mssql: affected < 3.4.1; fixed in 3.4.1
- PyPI apache-airflow-providers-odbc: affected < 4.0.0; fixed in 4.0.0

## Suggested inspection (read-only)
- `python -m pip show apache-airflow-providers-microsoft-mssql`: prints the installed version. Run with the environment that serves production active.
- `python -m pip show apache-airflow-providers-odbc`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on apache-airflow-providers-microsoft-mssql, apache-airflow-providers-odbc.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-q57w-826p-46jr (OSV record GHSA-q57w-826p-46jr lists affected ranges: PyPI apache-airflow-providers-odbc >=0 =0 <3.4.1 (fixed))
- Verified: https://github.com/advisories/GHSA-q57w-826p-46jr (GitHub-reviewed advisory GHSA-q57w-826p-46jr lists affected ranges: PyPI apache-airflow-providers-odbc >=0 =0 <3.4.1)

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