Vulnerability-Lookup

GHSA-2738-4G2M-64CV

Vulnerability from github – Published: 2026-10-20 03:32 – Updated: 2026-10-20 03:32

Details

Affects deployments using the AWS auth manager with SAML authentication. The victim needs only to visit an attacker-controlled page; no Airflow account or credential is required of the attacker. This is the same login-CSRF class fixed in the Keycloak auth manager as CVE-2026-40948.

Users of apache-airflow-providers-amazon are recommended to upgrade to version 9.38.0, which fixes the issue.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-86467"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-352"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-20T03:17:16Z",
    "severity": null
  },
  "details": "Apache Airflow Amazon provider: the AWS auth manager\u0027s SAML login flow does not bind the authentication response to the browser that began it. The login handler discards the AuthnRequest ID and the callback validates the assertion without requiring a matching InResponseTo, so an unauthenticated attacker who can cause a victim to load a page can complete a SAML login in the victim\u0027s browser using the attacker\u0027s own assertion, silently logging the victim into the attacker\u0027s Airflow account. Subsequent work the victim performs lands in a session the attacker controls.\n\nAffects deployments using the AWS auth manager with SAML authentication. The victim needs only to visit an attacker-controlled page; no Airflow account or credential is required of the attacker. This is the same login-CSRF class fixed in the Keycloak auth manager as CVE-2026-40948.\n\nUsers of apache-airflow-providers-amazon are recommended to upgrade to version 9.38.0, which fixes the issue.",
  "id": "GHSA-2738-4g2m-64cv",
  "modified": "2026-10-20T03:32:48Z",
  "published": "2026-10-20T03:32:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86467"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/airflow/pull/73698"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/xr9d2jyk9qpglsmromt6vjl4s9jb5qn8"
    },
    {
      "type": "WEB",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-40948"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-86467 (GCVE-0-2026-86467)

Vulnerability from cvelistv5 – Published: 2026-10-20 02:37 – Updated: 2026-10-20 02:37

Title

Apache Airflow Amazon provider: AWS auth manager: SAML login CSRF logs users into the attacker's account

Summary

Apache Airflow Amazon provider: the AWS auth manager's SAML login flow does not bind the authentication response to the browser that began it. The login handler discards the AuthnRequest ID and the callback validates the assertion without requiring a matching InResponseTo, so an unauthenticated attacker who can cause a victim to load a page can complete a SAML login in the victim's browser using the attacker's own assertion, silently logging the victim into the attacker's Airflow account. Subsequent work the victim performs lands in a session the attacker controls. Affects deployments using the AWS auth manager with SAML authentication. The victim needs only to visit an attacker-controlled page; no Airflow account or credential is required of the attacker. This is the same login-CSRF class fixed in the Keycloak auth manager as CVE-2026-40948. Users of apache-airflow-providers-amazon are recommended to upgrade to version 9.38.0, which fixes the issue.

Severity

No CVSS data available.

CWE

CWE-352 - Cross-Site Request Forgery (CSRF)

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 1024 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/apache/airflow/pull/73698	patch
https://lists.apache.org/thread/xr9d2jyk9qpglsmro…	vendor-advisory
https://www.cve.org/CVERecord?id=CVE-2026-40948	related

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Airflow Amazon provider	Affected: 0 , < 9.38.0 (semver)

Credits

Andrew Rukin (Arenadata) Jarek Potiuk

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pypi.python.org",
          "defaultStatus": "unaffected",
          "packageName": "apache-airflow-providers-amazon",
          "packageURL": "pkg:pypi/apache-airflow-providers-amazon",
          "product": "Apache Airflow Amazon provider",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "9.38.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Andrew Rukin (Arenadata)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Jarek Potiuk"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Apache Airflow Amazon provider: the AWS auth manager\u0027s SAML login flow does not bind the authentication response to the browser that began it. The login handler discards the AuthnRequest ID and the callback validates the assertion without requiring a matching InResponseTo, so an unauthenticated attacker who can cause a victim to load a page can complete a SAML login in the victim\u0027s browser using the attacker\u0027s own assertion, silently logging the victim into the attacker\u0027s Airflow account. Subsequent work the victim performs lands in a session the attacker controls.\u003cbr\u003e\u003cbr\u003eAffects deployments using the AWS auth manager with SAML authentication. The victim needs only to visit an attacker-controlled page; no Airflow account or credential is required of the attacker. This is the same login-CSRF class fixed in the Keycloak auth manager as CVE-2026-40948.\u003cbr\u003e\u003cbr\u003eUsers of apache-airflow-providers-amazon are recommended to upgrade to version 9.38.0, which fixes the issue."
            }
          ],
          "value": "Apache Airflow Amazon provider: the AWS auth manager\u0027s SAML login flow does not bind the authentication response to the browser that began it. The login handler discards the AuthnRequest ID and the callback validates the assertion without requiring a matching InResponseTo, so an unauthenticated attacker who can cause a victim to load a page can complete a SAML login in the victim\u0027s browser using the attacker\u0027s own assertion, silently logging the victim into the attacker\u0027s Airflow account. Subsequent work the victim performs lands in a session the attacker controls.\n\nAffects deployments using the AWS auth manager with SAML authentication. The victim needs only to visit an attacker-controlled page; no Airflow account or credential is required of the attacker. This is the same login-CSRF class fixed in the Keycloak auth manager as CVE-2026-40948.\n\nUsers of apache-airflow-providers-amazon are recommended to upgrade to version 9.38.0, which fixes the issue."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "text": "moderate"
            },
            "type": "Textual description of severity"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
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              "description": "CWE-352: Cross-Site Request Forgery (CSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-20T02:37:07.184Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/apache/airflow/pull/73698"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.apache.org/thread/xr9d2jyk9qpglsmromt6vjl4s9jb5qn8"
        },
        {
          "tags": [
            "related"
          ],
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-40948"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Apache Airflow Amazon provider: AWS auth manager: SAML login CSRF logs users into the attacker\u0027s account",
      "x_generator": {
        "engine": "airflow-s/generate_cve_json.py"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2026-86467",
    "datePublished": "2026-10-20T02:37:07.184Z",
    "dateReserved": "2026-09-07T14:27:31.334Z",
    "dateUpdated": "2026-10-20T02:37:07.184Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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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.
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