EUVD-2026-57270
GHSA-cjv4-7hp2-2x9h
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Network-reachable API, low complexity; PR:L because audit-log read access (authenticated) is required; C:H for full secret recovery; no integrity or availability impact.
Primary rating from Vendor (apache).
CVSS VectorVendor: apache
Lifecycle Timeline
4Blast Radius
ecosystem impact- 462 pypi packages depend on apache-airflow (429 direct, 37 indirect)
Ecosystem-wide dependent count for version 3.3.1.
DescriptionCVE.org
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.
AnalysisAI
Cleartext secret exposure in Apache Airflow's audit log affects all versions before 3.3.1, allowing any authenticated user with audit-log read access to recover Variable values and Connection extra credentials verbatim - without holding Variables or Connections read permissions. The bulk API endpoints (PATCH /api/v2/variables, PATCH /api/v2/connections) bypassed audit-log masking because the masker inspected only top-level request fields while bulk payloads nest entities two levels deep under actions[].entities[]. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two concurrent conditions: (1) the attacker must be an authenticated Airflow user with audit-log read permission, and (2) at least one bulk operation must have been performed against `PATCH /api/v2/variables` or `PATCH /api/v2/connections` - including indirectly via the Airflow UI's Import Variables action - causing secrets to be written to the log. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is elevated beyond what the absence of a CVSS score might suggest. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to apache-airflow 3.3.1 or later, as advised in the Apache mailing list advisory at https://lists.apache.org/thread/p3jr90jgp2brto4vwcrx680f3x11y70c. … Detailed patch versions, workarounds, and compensating controls in full report. |
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