CVE-2026-67587
CVE-2026-67587: 1 tracked advisory record across Apache. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Apache
1 advisory- Advisory severityHigh8.8
High [CVE-2026-58076 +2] Apache Airflow: DAG-author remote code execution on the Scheduler via a Serde `Callback` deserialization gadget
CVE-2026-67587Source published Source updated
This bulletin covers 3 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.
Apache Airflow's Task SDK rebuilt a `Callback` object from serialized data by re-running its constructor, which imports the module named by the stored callback path. Because `SyncCallback` is itself an Airflow class it passes the default `allowed_deserialization_classes` allow-list, so tightening that setting does not help. A Dag author — who controls a task instance's `next_kwargs` through the task execution API — can therefore cause an arbitrary module to be imported inside the scheduler process, when the scheduler's `awaiting_input` timeout sweep deserializes that value. No non-default configuration is required; the sweep runs unconditionally. Versions before 3.3.0 are not affected: the class existed, but the scheduler sweep that reaches it did not. This is a separate code path from…
- Affected products in this advisory
- Apache Airflow
- Source-reported affected versions
- Apache Airflow 3.3.0 before 3.3.1
- Source-reported fixed versions
- 3.3.1
- Mitigation guidance
- Users are advised to upgrade to apache-airflow 3.3.1 or later.
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