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CVE-2026-42360— Apache Airflow: Rendered template truncation bypasses nested sensitive-key masking

AI Predicted 8.2 Difficulty: Easy EPSS 0.35% · P27

Possible ATT&CK Techniques 1AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProductVersion RangeStatus
Apache Software FoundationApache Airflow< 3.2.2affected
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I. Basic Information for CVE-2026-42360

Vulnerability Information
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Vulnerability Title
Apache Airflow: Rendered template truncation bypasses nested sensitive-key masking
Source: CVE Program / CVE List V5
Vulnerability Description
A bug in Apache Airflow's rendered-template field handling caused nested sensitive-key masking (e.g. nested `password` / `token` / `secret` / `api_key` keys inside a JSON template structure) to be bypassed when the rendered field exceeded `[core] max_templated_field_length`: Airflow stringified the structure before redaction, losing the nested key context, and persisted the plaintext value into `rendered_fields`. An authenticated UI/API user with permission to read rendered template fields could harvest secret values intended to be masked. Affects deployments where Dag authors pass structured JSON to operators with nested sensitive keys. This is a variant of `CWE-200` previously addressed for the user-registered `mask_secret()` patterns in CVE-2025-68438; that fix did not cover the nested sensitive-keyword allowlist. Users who already upgraded for CVE-2025-68438 should additionally upgrade to `apache-airflow` 3.2.2 or later to cover the nested-key path.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Airflow 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Airflow是美国阿帕奇（Apache）基金会的一套具有创建、管理和监控工作流程功能的开源平台。该平台具有可扩展和动态监控等特点。 Apache Airflow 3.2.2之前版本存在安全漏洞，该漏洞源于渲染模板字段处理中，当渲染字段超过最大模板字段长度时，嵌套敏感键掩码被绕过，可能导致具有读取渲染模板字段权限的认证用户获取本应被掩码的机密值。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Apache Software FoundationApache Airflow 0 ~ 3.2.2 -

II. Public POCs for CVE-2026-42360

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III. Intelligence Information for CVE-2026-42360

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Patches & Fixes for CVE-2026-42360 (1)

Mailing List Discussions for CVE-2026-42360 (1)

Same Patch Batch · Apache Software Foundation · 2026-06-01 · 28 CVEs total

CVE-2026-448258.1 HIGHApache Solr: Enabling BasicAuth using bin/solr CLI configures additional insecure users
CVE-2026-488277.1 HIGHApache MINA SSHD: Path traversal in org.apache.sshd:sshd-git
CVE-2026-42359Apache Airflow: Authenticated RCE via XCom PATCH endpoint — XComUpdateBody missing FORBIDD
CVE-2026-49328Apache Fesod (Incubating): Improper validation of user-supplied URLs leading to SSRF
CVE-2026-49361Apache Fluss Netty Frame Decoder Memory Exhaustion Vulnerability
CVE-2026-40861Apache Airflow: Arbitrary File Read via Log Symlink following in FileTaskHandler
CVE-2026-40961Apache Airflow: Open Redirect Bypass Vulnerability
CVE-2026-40963Apache Airflow: DAG authorization bypass on /ui/structure/structure_data
CVE-2026-41014Apache Airflow: per-DAG RBAC bypass on /ui/partitioned_dag_runs endpoints
CVE-2026-49267Apache Airflow: No certificate validation on SMTP STARTTLS connections
CVE-2026-41017Apache Airflow: JWT cookie missing Secure flag in JWTRefreshMiddleware behind HTTPS-termin
CVE-2026-41084Apache Airflow: API authorization bypass: bulk TaskInstances allows cross-DAG mutation
CVE-2026-42252Apache Airflow: BashOperator Jinja2 injection via dag_run.conf — low-privilege user patter
CVE-2026-42358Apache Airflow: Variable masker depth-limit bypass returns cleartext nested secrets
CVE-2026-45192Apache Airflow: Incomplete Redaction of Sensitive Fields in Connection Extra API Response
CVE-2026-45360Apache Airflow: Arbitrary import in custom deadline-reference deserialization
CVE-2026-45426Apache Airflow: Log server JWT authorization bypass via Python lstrip() character strippin
CVE-2026-46764Apache Airflow: Event Log detail endpoint bypasses DAG-scoped event log permission filter
CVE-2026-48726Apache Airflow: revoke_token() unreachable in FabAuthManager / KeycloakAuthManager logout
CVE-2026-49298Apache Airflow: JWT Token Exposure in KubernetesExecutor Command-Line Arguments

Showing top 20 of 28 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Apache Airflow
Same vendor: Apache Software Foundation
Same weakness: CWE-200

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