Apache AirflowPYSEC-2026-3711

Apache Airflow wrote Variable values and Connection `extra` contents to the audit log in cleartext when they were submitted through the bulk endpoints (`PATCH /api/v2/variables` and `PATCH /api/v2/connections`). The audit-log masking recognised only top-level request fields, and a bulk request nests

Medium6.5CVE-2026-68969 · Published Aug 12, 2026 · updated Aug 19, 2026

Affected versions

Package	Affected	Fixed in
apache-airflow PyPI	< 3.3.1	3.3.1

Details and references

Apache Airflow wrote Variable values and Connection `extra` contents to the audit log in cleartext when they were submitted through the bulk endpoints (`PATCH /api/v2/variables` and `PATCH /api/v2/connections`). The audit-log masking recognised only top-level request fields, and a bulk request nests its entities two levels below, so no masking was applied to them. Any authenticated user with audit-log read access -- who need not hold Variables or Connections read at all -- could recover those secrets verbatim, and the Connection `extra` copy is stored unencrypted in the log while the connection table encrypts it. The Airflow UI's *Import Variables* action posts to this endpoint, so an ordinary operator import wrote every secret in the file to the log. This is a different code path from CVE-2026-50204: that fix shipped in 3.3.0 and covers the single-entity endpoints 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.

CVSS 3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Severity from: the CVSS score
Also known as: BIT-airflow-2026-68969, CVE-2026-68969

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Date	Advisory	Severity	Fixed in
Aug 12	Apache Airflow's secrets masker hides values stored under sensitive key names when they are displayed in the UI. The masker's recursion-depth limit did not descend into values nested inside a list, tuple, or set beyond that limit, so an Airflow Variable holding such a deeply-nested value was shown u CVE-2026-54183Medium4.3fixed in 3.3.1	Medium4.3	3.3.1
Aug 12	Apache Airflow's secrets masker did not mask `var.json` Variable values whose value is a dict in the Rendered Templates UI , the dict value failed an `isinstance(str)` guard , so a secret stored as a JSON Variable and referenced in a template via `var.json` was displayed in cleartext to any user wit CVE-2026-59244Medium6.5fixed in 3.3.1	Medium6.5	3.3.1
Aug 12	Apache Airflow 3.3.0 moved human-in-the-loop tasks from the triggerer to a new `awaiting_input` task state swept by the scheduler. That sweep deserializes the task instance's `next_kwargs` without an allow-list, so a Dag author , who controls that value through the task execution API , can cause an CVE-2026-67260High7.3fixed in 3.3.1	High7.3	3.3.1
Aug 12	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 th CVE-2026-67587High8.8fixed in 3.3.1	High8.8	3.3.1
Aug 12	Apache Airflow's environment-variable secrets backend resolved a team-scoped Connection or Variable from the wrong team's scope. The guard meant to prevent this only ran when no team scope was supplied, and its pattern could not match a team name containing an underscore, which team names are allowe CVE-2026-68076Medium5.4fixed in 3.3.1	Medium5.4	3.3.1
Aug 12	Apache Airflow's Backfill API authorized a request against a Dag id supplied by the caller whenever the `backfill_id` path segment failed to parse. The authorization dependency parsed it with `int()` while the route handler parsed it as pydantic's `NonNegativeInt`, which accepts values `int()` rejec CVE-2026-68968High7.5fixed in 3.3.1	High7.5	3.3.1

Affected versions

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