Vulnerability-Lookup

GHSA-F643-3RC2-J27W

Vulnerability from github – Published: 2026-08-12 18:31 – Updated: 2026-08-14 18:31

Details

Apache Airflow's secrets masker did not mask var.json Variable values whose value is a dict in the Rendered Templates UI — the dict value failed an isinstance(str) guard — so a secret stored as a JSON Variable and referenced in a template via var.json was displayed in cleartext to any user with access to that task's Rendered Templates view. Users are advised to upgrade to apache-airflow 3.3.1 or later, which masks nested Variable values regardless of type.

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-59244"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-312"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-12T16:17:09Z",
    "severity": "MODERATE"
  },
  "details": "Apache Airflow\u0027s secrets masker did not mask `var.json` Variable values whose value is a dict in the Rendered Templates UI \u2014 the dict value failed an `isinstance(str)` guard \u2014 so a secret stored as a JSON Variable and referenced in a template via `var.json` was displayed in cleartext to any user with access to that task\u0027s Rendered Templates view. Users are advised to upgrade to apache-airflow 3.3.1 or later, which masks nested Variable values regardless of type.",
  "id": "GHSA-f643-3rc2-j27w",
  "modified": "2026-08-14T18:31:27Z",
  "published": "2026-08-12T18:31:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59244"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/pull/68975"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/fncod6vttfo5fvmfs3h9r8s2kmm9j1n6"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/08/12/7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-59244 (GCVE-0-2026-59244)

Vulnerability from cvelistv5 – Published: 2026-08-12 15:43 – Updated: 2026-09-16 14:56

Title

Apache Airflow: Secrets masker: `var.json` Variable values not masked in the Rendered Templates UI

Summary

Apache Airflow's secrets masker did not mask `var.json` Variable values whose value is a dict in the Rendered Templates UI — the dict value failed an `isinstance(str)` guard — so a secret stored as a JSON Variable and referenced in a template via `var.json` was displayed in cleartext to any user with access to that task's Rendered Templates view. Users are advised to upgrade to apache-airflow 3.3.1 or later, which masks nested Variable values regardless of type.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-18 13:43 UTC

CWE

CWE-312 - Cleartext Storage of Sensitive Information

Assigner

apache mitre root

References

3 references

URL	Tags
https://github.com/apache/airflow/pull/68975	patch
https://lists.apache.org/thread/fncod6vttfo5fvmfs…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/08/12/7

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Airflow	Affected: 0 , < 3.3.1 (semver)

Credits

Juan Pablo Guereca (@jpgerek) Juan Pablo Guereca (@jpgerek)

Show details on NVD website

JSON

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        "providerMetadata": {
          "dateUpdated": "2026-08-12T17:20:19.495Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/08/12/7"
          }
        ],
        "title": "CVE Program Container"
      },
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        "metrics": [
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            "cvssV3_1": {
              "attackComplexity": "LOW",
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              "availabilityImpact": "NONE",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
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              "privilegesRequired": "LOW",
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              "userInteraction": "NONE",
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                "id": "CVE-2026-59244",
                "options": [
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                    "Exploitation": "none"
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                  },
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                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-18T13:43:56.777503Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2026-08-18T19:53:25.636Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
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    "cna": {
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          "defaultStatus": "unaffected",
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      "metrics": [
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            "content": {
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          "url": "https://lists.apache.org/thread/fncod6vttfo5fvmfs3h9r8s2kmm9j1n6"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.