GHSA-2943-9672-r45w

A bug in BaseSerialization.deserialize() allowed unrestricted import_string() of attacker-controlled class paths when the Scheduler / API Server loaded a serialized DAG: a DAG author could embed a malicious trigger into a DAG to gain remote code execution on the API Server / Scheduler process, crossing the Airflow security boundary that DAG-author code must never execute in those processes. Users are advised to upgrade to apache-airflow 3.3.0 or later. As a defense-in-depth mitigation, deployments where DAG-author trust is limited can restrict the [core] allowed_deserialization_classes config to a narrow allowlist.

Database specific

{
    "cwe_ids": [
        "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-04T19:23:01Z",
    "nvd_published_at": "2026-07-07T10:16:40Z",
    "severity": "CRITICAL"
}

References

Affected packages

PyPI / apache-airflow

Package

Name: apache-airflow; View open source insights on deps.dev
Purl: pkg:pypi/apache-airflow

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

3.3.0

Affected versions

1.*

1.8.1

1.8.2rc1

1.8.2

1.9.0

1.10.0

1.10.1b1

1.10.1rc2

1.10.1

1.10.2b2

1.10.2rc1

1.10.2rc2

1.10.2rc3

1.10.2

1.10.3b1

1.10.3b2

1.10.3rc1

1.10.3rc2

1.10.3

1.10.4b2

1.10.4rc1

1.10.4rc2

1.10.4rc3

1.10.4rc4

1.10.4rc5

1.10.4

1.10.5rc1

1.10.5

1.10.6rc1

1.10.6rc2

1.10.6

1.10.7rc1

1.10.7rc2

1.10.7rc3

1.10.7

1.10.8rc1

1.10.8

1.10.9rc1

1.10.9

1.10.10rc1

1.10.10rc2

1.10.10rc3

1.10.10rc4

1.10.10rc5

1.10.10

1.10.11rc1

1.10.11rc2

1.10.11

1.10.12rc1

1.10.12rc2

1.10.12rc3

1.10.12rc4

1.10.12

1.10.13rc1

1.10.13

1.10.14rc1

1.10.14rc2

1.10.14rc3

1.10.14rc4

1.10.14

1.10.15rc1

1.10.15

2.*

2.0.0b1

2.0.0b2

2.0.0b3

2.0.0rc1

2.0.0rc2

2.0.0rc3

2.0.0

2.0.1rc1

2.0.1rc2

2.0.1

2.0.2rc1

2.0.2

2.1.0rc1

2.1.0rc2

2.1.0

2.1.1rc1

2.1.1

2.1.2rc1

2.1.2

2.1.3rc1

2.1.3

2.1.4rc1

2.1.4rc2

2.1.4

2.2.0b1

2.2.0b2

2.2.0rc1

2.2.0

2.2.1rc1

2.2.1rc2

2.2.1

2.2.2rc1

2.2.2rc2

2.2.2

2.2.3rc1

2.2.3rc2

2.2.3

2.2.4rc1

2.2.4

2.2.5rc1

2.2.5rc2

2.2.5rc3

2.2.5

2.3.0b1

2.3.0rc1

2.3.0rc2

2.3.0

2.3.1rc1

2.3.1

2.3.2rc1

2.3.2rc2

2.3.2

2.3.3rc1

2.3.3rc2

2.3.3rc3

2.3.3

2.3.4rc1

2.3.4

2.4.0b1

2.4.0rc1

2.4.0

2.4.1rc1

2.4.1

2.4.2rc1

2.4.2

2.4.3rc1

2.4.3

2.5.0rc1

2.5.0rc2

2.5.0rc3

2.5.0

2.5.1rc1

2.5.1rc2

2.5.1

2.5.2rc1

2.5.2rc2

2.5.2

2.5.3rc1

2.5.3rc2

2.5.3

2.6.0b1

2.6.0rc1

2.6.0rc2

2.6.0rc3

2.6.0rc4

2.6.0rc5

2.6.0

2.6.1rc1

2.6.1rc2

2.6.1rc3

2.6.1

2.6.2rc1

2.6.2rc2

2.6.2

2.6.3rc1

2.6.3

2.7.0b1

2.7.0rc1

2.7.0rc2

2.7.0

2.7.1rc1

2.7.1rc2

2.7.1

2.7.2rc1

2.7.2

2.7.3rc1

2.7.3

2.8.0b1

2.8.0rc1

2.8.0rc2

2.8.0rc3

2.8.0rc4

2.8.0

2.8.1rc1

2.8.1

2.8.2rc1

2.8.2rc2

2.8.2rc3

2.8.2

2.8.3rc1

2.8.3

2.8.4rc1

2.8.4

2.9.0b1

2.9.0b2

2.9.0rc1

2.9.0rc2

2.9.0rc3

2.9.0

2.9.1rc1

2.9.1rc2

2.9.1

2.9.2rc1

2.9.2

2.9.3rc1

2.9.3

2.10.0b1

2.10.0b2

2.10.0rc1

2.10.0

2.10.1rc1

2.10.1

2.10.2rc1

2.10.2

2.10.3rc1

2.10.3rc2

2.10.3

2.10.4rc1

2.10.4

2.10.5rc1

2.10.5

2.11.0rc1

2.11.0

2.11.1rc1

2.11.1rc2

2.11.1

2.11.2rc1

2.11.2

3.*

3.0.0b4

3.0.0rc1

3.0.0rc1.post1

3.0.0rc1.post2

3.0.0rc1.post3

3.0.0rc1.post4

3.0.0rc2

3.0.0rc3

3.0.0rc4

3.0.0

3.0.1rc1

3.0.1

3.0.2rc1

3.0.2rc2

3.0.2

3.0.3rc1

3.0.3rc2

3.0.3rc3

3.0.3rc4

3.0.3rc5

3.0.3rc6

3.0.3

3.0.4rc1

3.0.4rc2

3.0.4

3.0.5rc1

3.0.5rc2

3.0.5rc3

3.0.5

3.0.6rc1

3.0.6rc2

3.0.6

3.1.0b1

3.1.0b2

3.1.0rc1

3.1.0rc2

3.1.0

3.1.1rc1

3.1.1rc2

3.1.1

3.1.2rc1

3.1.2rc2

3.1.2

3.1.3rc1

3.1.3

3.1.4rc1

3.1.4rc2

3.1.4

3.1.5rc1

3.1.5

3.1.6rc1

3.1.6

3.1.7rc1

3.1.7rc2

3.1.7

3.1.8rc1

3.1.8rc2

3.1.8

3.2.0b1

3.2.0b2

3.2.0rc1

3.2.0rc2

3.2.0

3.2.1rc1

3.2.1rc2

3.2.1rc3

3.2.1

3.2.2rc1

3.2.2rc2

3.2.2rc3

3.2.2

3.3.0b1

3.3.0b2

3.3.0rc1

3.3.0rc2

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-2943-9672-r45w/GHSA-2943-9672-r45w.json"