CVE Explorer
CVE-2026-34538
Apache Airflow versions 3.0.0 through 3.1.8 DagRun wait endpoint returns XCom result values even to users who only have DAG Run read permissions, such as the Viewer role.This behavior conflicts with the FAB RBAC model, which treats XCom as a separate protected resource, and with the security model documentation that defines the Viewer role as read-only.
Airflow uses the FAB Auth Manager to manage access control on a per-resource basis. The Viewer role is intended to be read-only by default, and
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://pypi.python.org","defaultStatus":"unaffected","packageName":"apache-airflow","product":"Apache Airflow","vendor":"Apache Software Foundation","versions":[{"lessThan":"3.2.0","status":"affected","version":"3.0.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:b39ad0bbde834b775e5bdf5f619d39d0d63d8c8cb22f3dfab7292ee4ff770754 · sha256:ecae151ab8b3a67e… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:b39ad0bbde834b775e5bdf5f619d39d0d63d8c8cb22f3dfab7292ee4ff770754 · sha256:ecae151ab8b3a67e… · /containers/adp/1/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-668","description":"CWE-668: Exposure of Resource to Wrong Sphere","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:b39ad0bbde834b775e5bdf5f619d39d0d63d8c8cb22f3dfab7292ee4ff770754 · sha256:ecae151ab8b3a67e… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"url":"http://www.openwall.com/lists/oss-security/2026/04/09/9"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b39ad0bbde834b775e5bdf5f619d39d0d63d8c8cb22f3dfab7292ee4ff770754 · sha256:ecae151ab8b3a67e… · /containers/adp/0/references/0
{"tags":["patch"],"url":"https://github.com/apache/airflow/pull/64415"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b39ad0bbde834b775e5bdf5f619d39d0d63d8c8cb22f3dfab7292ee4ff770754 · sha256:ecae151ab8b3a67e… · /containers/cna/references/0
{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/9mq3msqhmgjwdzbr6bgthj4brb3oz9fl"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b39ad0bbde834b775e5bdf5f619d39d0d63d8c8cb22f3dfab7292ee4ff770754 · sha256:ecae151ab8b3a67e… · /containers/cna/references/1
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.