CVE-2026-49487 json
Apache Airflow: Task-instance API exposes secrets in deferred trigger kwargs
published 2026-07-07 4 mo ago modified 2026-11-03 6 d ago also BIT-airflow-2026-49487 , EUVD-2026-42029 , GHSA-22hf-vx2v-gjff , PYSEC-2026-2088
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
In Apache Airflow before 3.3.0, the REST API task-instance detail and list endpoints returned a deferred task's trigger kwargs without masking. When a deferred operator passed a secret (for example a provider API key) into its trigger, any authenticated user with DAG-scoped task-instance read access for that DAG could read that secret in clear text while the task was deferred. Users should upgrade to apache-airflow 3.3.0 or later, which masks sensitive values in trigger kwargs returned by the API.
Patch / fix
- pypi apache-airflow 3.3.0
- bitnami airflow 3.3.0
- Apache Software Foundation Apache Airflow 3.0.0, 3.3.0
- github.com/apache/airflow@9101aa6 commit
- github.com/apache/airflow#67868 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.66% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| OSV | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | apache-airflow | <3.3.0 |
3.3.0 |
| bitnami | airflow | <3.3.0 |
3.3.0 |
Affected products
- Apache Software Foundation Apache Airflow
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
github.com
/apache/airflow/pull/67868
patch, web, issue-tracking, report
-
github.com
/apache/airflow/commit/9101aa66754af052ba5010a5fce9f8fa4140e6c7
web
-
lists.apache.org
/thread/qlw6pozlzlfhkvmbgqsbjlq6vj4v0pc4
vendor-advisory, web, advisory
-
openwall.com
/lists/oss-security/2026/07/07/6
web, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-49487
advisory, web
-
github.com
/apache/airflow
package
-
github.com
/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-2088.yaml
web
-
github.com
/advisories/GHSA-22hf-vx2v-gjff
advisory
Sources
- CVE List CVE-2026-49487
- GitHub Advisory GHSA-22hf-vx2v-gjff
- NVD CVE-2026-49487
- OSV BIT-airflow-2026-49487
- OSV PYSEC-2026-2088
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