CVE-2026-68970
Apache Airflow: Values of a list-shaped Variable are not masked in task logs and the Rendered Templates UI
Description
Apache Airflow's Task SDK did not mask the contents of a Variable whose JSON value is a list, so secrets stored in that shape appeared in cleartext in task logs and in the Rendered Templates UI. Masking was applied only when the deserialized value was a string or a dict; a list at the top level matched neither and was returned unmasked. Any authenticated user able to read the logs or rendered templates of a task that references such a Variable could recover the values, with no special configuration required. This is the list-shaped counterpart of CVE-2026-59244, whose fix covered the dict case only, so deployments that upgraded in response to that advisory remain affected and must upgrade again. Users are advised to upgrade to apache-airflow 3.3.1 or later.
INFO
Published Date :
Aug. 12, 2026, 4:17 p.m.
Last Modified :
Sept. 16, 2026, 3:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Upgrade Apache Airflow to version 3.3.1 or later.
- Ensure sensitive data is not stored in list-shaped Variables.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-68970.
| URL | Resource |
|---|---|
| https://github.com/apache/airflow/pull/70891 | Issue Tracking Patch |
| https://lists.apache.org/thread/kkrlnbsk47oght4h38mcd3h2kcb8dt28 | Mailing List Vendor Advisory |
| https://www.cve.org/CVERecord?id=CVE-2026-59244 | Mailing List Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68970 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-68970
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-68970 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68970 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Sep. 16, 2026
Action Type Old Value New Value Added Affected Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/68xxx/CVE-2026-68970.json">CVE-2026-68970</a> Added Reference https://github.com/apache/airflow/pull/70891 Added Reference https://lists.apache.org/thread/kkrlnbsk47oght4h38mcd3h2kcb8dt28 Added Reference https://www.cve.org/CVERecord?id=CVE-2026-59244 Removed Reference https://github.com/apache/airflow/pull/70891 Removed Reference https://lists.apache.org/thread/kkrlnbsk47oght4h38mcd3h2kcb8dt28 Removed Reference https://www.cve.org/CVERecord?id=CVE-2026-59244 Removed Reference Type https://github.com/apache/airflow/pull/70891 Types: Issue Tracking, Patch Removed Reference Type https://lists.apache.org/thread/kkrlnbsk47oght4h38mcd3h2kcb8dt28 Types: Mailing List, Vendor Advisory Removed Reference Type https://www.cve.org/CVERecord?id=CVE-2026-59244 Types: Mailing List, Third Party Advisory -
Initial Analysis by [email protected]
Aug. 14, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:* versions up to (excluding) 3.3.1 Added Reference Type Apache Software Foundation: https://github.com/apache/airflow/pull/70891 Types: Issue Tracking, Patch Added Reference Type Apache Software Foundation: https://lists.apache.org/thread/kkrlnbsk47oght4h38mcd3h2kcb8dt28 Types: Mailing List, Vendor Advisory Added Reference Type Apache Software Foundation: https://www.cve.org/CVERecord?id=CVE-2026-59244 Types: Mailing List, Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 12, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added SSVC {'id': 'CVE-2026-68970', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-12T19:00:36.231697Z'} -
New CVE Received by [email protected]
Aug. 12, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Apache Software Foundation', 'product': 'Apache Airflow', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '3.3.1', 'versionType': 'semver'}], 'packageName': 'apache-airflow', 'collectionURL': 'https://pypi.python.org', 'defaultStatus': 'unaffected'}] Added Description Apache Airflow's Task SDK did not mask the contents of a Variable whose JSON value is a list, so secrets stored in that shape appeared in cleartext in task logs and in the Rendered Templates UI. Masking was applied only when the deserialized value was a string or a dict; a list at the top level matched neither and was returned unmasked. Any authenticated user able to read the logs or rendered templates of a task that references such a Variable could recover the values, with no special configuration required. This is the list-shaped counterpart of CVE-2026-59244, whose fix covered the dict case only, so deployments that upgraded in response to that advisory remain affected and must upgrade again. Users are advised to upgrade to apache-airflow 3.3.1 or later. Added CWE CWE-312 Added Reference https://github.com/apache/airflow/pull/70891 Added Reference https://lists.apache.org/thread/kkrlnbsk47oght4h38mcd3h2kcb8dt28 Added Reference https://www.cve.org/CVERecord?id=CVE-2026-59244