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Apache software foundation apache airflow, deserialization of untrusted data: 11 records, one defect family

Apache software foundation apache airflow has been reported 11 separate times for the same kind of mistake, CWE-502, between 2020-07-16 and 2026-08-12. A defect family is our own grouping of the CVE corpus: every record naming one product and one weakness class, collected so a repeat is visible as a repeat. No public source publishes this, and what this page counts is how often this one product has gone wrong in this one way.

What this page is, and what it is not

The records are public. This grouping is not. No source publishes defect families, so we built them: every record in the corpus sorted by the product an authority named and the weakness class carried with it, 21316 families over 105586 records. This one holds every record that names Apache software foundation apache airflow and carries CWE-502, matched character for character. We show the join because a grouping you cannot check is a grouping you should not cite.

One record is an incident. 11 filings, between 2020-07-16 and 2026-08-12, all landing on the same weakness class in the same product, is a habit in what gets reported here, and a habit is something you can plan around. This is what we held on 2026-09-20.

A repeat is evidence about where to look. If you are reviewing Apache software foundation apache airflow, the records below say which mistake has already been found more than once, which is the cheapest place a reviewer can start. If you are asking the vendor a question, a count under one weakness class is a better question than any single record is.

What this page cannot tell you is decided by what was joined. A product name and a weakness class settled membership, so those two values are the whole of what the page asserts. Records here may sit in the same line of code or in unrelated parts of the product, and we hold no value that separates those cases. A fixed version named in one record closes that record and says nothing about the others. And nothing here describes anyone's systems, because no value in this family connects a product name to an installation.

2020202220242026CVE-2020-11982, published 2020-07-16CVE-2023-50943, published 2024-01-24CVE-2026-33858, published 2026-04-13CVE-2026-25917, published 2026-04-18CVE-2026-42359, published 2026-06-01CVE-2026-45360, published 2026-06-01CVE-2026-33264, published 2026-07-07CVE-2026-58076, published 2026-08-12CVE-2026-59242, published 2026-08-12CVE-2026-67260, published 2026-08-12CVE-2026-67587, published 2026-08-12
9 of the 11 were published in 2026, and the rest are spread over 6.1 years, so this is one concentrated year with a tail rather than a steady rate.

The names the authorities used

One spelling, used by every authority that filed one of these records: apache software foundation apache airflow.

Family membership: held values. Joined on the product and weakness class the assigning authorities wrote, with no model involved.

What the records offer

10 of 11 records publish a fixed version. For the other 1, held sources name none.

The earliest was published 2020-07-16 and the latest 2026-08-12. That span is how long this product kept producing this weakness, not how long any one record took to fix.

What this page does not cover

This is a family of records that read alike. It is not a shared vulnerability, not an inventory, and not a statement that one fix closes the rest. Each record's own state, its own dates and its own receipts are on its own page.

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Everything this vendor has, including records outside this family:

CVE-2020-11982no title heldRemote Code Execution
CVE-2023-50943Apache Airflow: Potential pickle deserialization vulnerability in XComsCWE-502 Deserialization of Untrusted Data
CVE-2026-25917Apache Airflow: API extra-links triggers XCom deserialization/class instantiation (Airflow 3.1.5)CWE-502: Deserialization of Untrusted Data
CVE-2026-33264Apache Airflow: DAG author RCE on webserver via unrestricted import_string() in BaseSerialization.deserialize()CWE-502: Deserialization of Untrusted Data
CVE-2026-33858Apache Airflow: Unsafe Deserialization via Legacy Serialization Keys (__type/__var) Bypass in XCom APICWE-502: Deserialization of Untrusted Data
CVE-2026-42359Apache Airflow: Authenticated RCE via XCom PATCH endpoint — XComUpdateBody missing FORBIDDEN_XCOM_KEYS validatorCWE-502: Deserialization of Untrusted Data
CVE-2026-45360Apache Airflow: Arbitrary import in custom deadline-reference deserializationCWE-502: Deserialization of Untrusted Data
CVE-2026-58076Apache Airflow: Unguarded import_string() of airflow_exc_ser / base_exc_ser exception nodes in…CWE-502: Deserialization of Untrusted Data
CVE-2026-59242Apache Airflow: Arbitrary airflow.* class instantiation on the API server via the XCom deserialize endpointCWE-502: Deserialization of Untrusted Data
CVE-2026-67260Apache Airflow: DAG-author remote code execution on the Scheduler via awaiting_input next_kwargs deserializationCWE-502: Deserialization of Untrusted Data
CVE-2026-67587Apache Airflow: DAG-author remote code execution on the Scheduler via a Serde `Callback` deserialization gadgetCWE-502: Deserialization of Untrusted Data

11 records, read from the index as it stood on 20 Sep 2026. Every row opens the record it names, and every value on that record opens its own receipt.

Everything on this page is free. Public data. Withholding it protects nothing.