CVE-2023-42781 — Apache Airflow, versions before 2

Apache Airflow, versions before 2.7.3, has a vulnerability that allows an authorized user who has access to read specific DAGs only, to read information about task instances in other DAGs. This is a different issue than CVE-2023-42663 but leading to similar outcome. Users of Apac

01What is this vulnerability?

Apache Airflow, versions before 2.7.3, has a vulnerability that allows an authorized user who has access to read specific DAGs only, to read information about task instances in other DAGs. This is a different issue than CVE-2023-42663 but leading to similar outcome. Users of Apache Airflow are advised to upgrade to version 2.7.3 or newer to mitigate the risk associated with this vulnerability.

02Affected products

Vendor	Product	Versions
Apache Software Foundation	Apache Airflow	0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

08Timeline

• Published: 2023-11-12T13:14:09.700Z
• Last modified: 2025-02-13T17:09:41.138Z

09References

• github.com — https://github.com/apache/airflow/pull/34939
• lists.apache.org — https://lists.apache.org/thread/7dnl8nszdxqyns57f3dw0sloy5dfl9o1
• www.openwall.com — http://www.openwall.com/lists/oss-security/2023/11/12/2