CVE-2023-50943 json
Apache Airflow: Potential pickle deserialization vulnerability in XComs
published 2024-01-24 2 y ago modified 2026-09-08 2 mo ago also BIT-airflow-2023-50943 , EUVD-2024-0004 , GHSA-c3c6-f2ww-xfr2 , PYSEC-2024-13
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
Apache Airflow, versions before 2.8.1, have a vulnerability that allows a potential attacker to poison the XCom data by bypassing the protection of "enable_xcom_pickling=False" configuration setting resulting in poisoned data after XCom deserialization. This vulnerability is considered low since it requires a DAG author to exploit it. Users are recommended to upgrade to version 2.8.1 or later, which fixes this issue.
Patch / fix
- pypi apache-airflow 2.8.1, 2.8.1rc1
- bitnami airflow 2.8.1
- Apache Software Foundation Apache Airflow 2.8.1
- github.com/apache/airflow@2c4c5bc commit
- github.com/apache/airflow#36255 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
1.22% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| OSV | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | apache-airflow | <2.8.1rc1 <2.8.1 |
2.8.1rc1 2.8.1 |
| bitnami | airflow | <2.8.1 |
2.8.1 |
Affected products
- Apache Software Foundation Apache Airflow
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
github.com
/apache/airflow/pull/36255
patch, web, third-party-advisory, advisory
-
github.com
/apache/airflow/commit/2c4c5bc604e9ab0cc1e98f7bee7d31d566579462
web
-
lists.apache.org
/thread/fx278v0twqzxkcts70tc04cp3f8p56pn
vendor-advisory, web, mailing-list, advisory
-
openwall.com
/lists/oss-security/2024/01/24/4
web, mailing-list, discussion
-
nvd.nist.gov
/vuln/detail/CVE-2023-50943
advisory, web
-
github.com
/apache/airflow
package
-
github.com
/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2024-13.yaml
web
-
github.com
/advisories/GHSA-c3c6-f2ww-xfr2
advisory
Sources
- CVE List CVE-2023-50943
- GitHub Advisory GHSA-c3c6-f2ww-xfr2
- NVD CVE-2023-50943
- OSV BIT-airflow-2023-50943
- OSV PYSEC-2024-13
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