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Vulnerabilities

Vulnerability · CVE-2026-42360

A bug in Apache Airflow's rendered-template field handling caused nested sensitive-key masking (e.g.

Published Jun 1, 2026 · catalog updated Jul 21, 2026 · A bug in Apache

Check if you run it

No confirmed exploitation is on record for CVE-2026-42360. EPSS is 0.52%. Act only if a listed version of A bug in Apache is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A bug in Apache).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.52%
Remediation
Not established
Affected products
cpe apache/airflow

A bug in Apache Airflow's rendered-template field handling caused nested sensitive-key masking (e.g. nested / / / keys inside a JSON template structure) to be bypassed when the rendered field exceeded : Airflow stringified the structure before redaction, losing the nested key context, and persisted the plaintext value into . 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 previously addressed for the user-registered 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 3.2.2 or later to cover the nested-key path.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apache/airflowversion unspecified

How to fix CVE-2026-42360

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-42360. EPSS is 0.52%. Act only if a listed version of A bug in Apache is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-200: Exposure of Sensitive Information. EPSS 0.52%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 1, 2026 · NIST NVD

    Detected

    A bug in Apache Airflow's rendered-template field handling caused nested sensitive-key masking (e.g. nested / / / keys inside a JSON template structure) to be bypassed when the rendered field exceeded : Airflow stringified the structure before redaction, losing the nested key context, and persisted the plaintext value into . An authenticated UI/API user with permission to read rendered template fi

  2. Jul 21, 2026 · NIST NVD

    Updated

    A bug in Apache Airflow's rendered-template field handling caused nested sensitive-key masking (e.g. nested / / / keys inside a JSON template structure) to be bypassed when the rendered field exceeded : Airflow stringified the structure before redaction, losing the nested key context, and persisted the plaintext value into . An authenticated UI/API user with permission to read rendered template fi

Sources

  • CVE.orgVulnerability recordCVE-2026-42360

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-42360

    30-day exploitation probability 0.5%

    first.org
  • NIST NVDVulnerability recordCVE-2026-42360

    A bug in Apache Airflow's rendered-template field handling caused nested sensitive-key masking (e.g. nested / / / keys inside a JSON template structure) to be bypassed when the rendered field exceeded : Airf

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.