CVE-2026-86473 (GCVE-0-2026-86473)

Vulnerability from cvelistv5 – Published: 2026-09-21 14:33 – Updated: 2026-09-21 14:33
VLAI
Title
Apache Airflow: Logout ignores a presented Authorization bearer token, leaving it revocable only by expiry
Summary
Apache Airflow: the Core API logout endpoint revokes only a session token presented as the _token cookie. When a client logs out presenting its credential as an Authorization bearer header instead, the endpoint returns its normal logout response but revokes nothing, so the token remains valid until it expires. An attacker who already holds a copy of that token keeps the victim's access after the victim has logged out and believes the session ended; the default token lifetime is 24 hours and is configurable. Affects API clients that authenticate with a bearer token rather than the browser session cookie. The attacker must already possess a copy of a valid token; obtaining one is outside the scope of this issue, and no privileges beyond the victim's own are gained. Users of apache-airflow are recommended to upgrade to apache-airflow version 3.3.2 or later, which fixes the issue.
Severity
No CVSS data available.
CWE
  • CWE-613 - Insufficient Session Expiration
Assigner
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache Airflow Affected: 3.0.0 , < 3.3.2 (semver)
guessed Create a notification for this product.
Credits
OpenSec Intelligence Jarek Potiuk
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pypi.python.org",
          "defaultStatus": "unaffected",
          "packageName": "apache-airflow",
          "packageURL": "pkg:pypi/apache-airflow",
          "product": "Apache Airflow",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "3.3.2",
              "status": "affected",
              "version": "3.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "OpenSec Intelligence"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Jarek Potiuk"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Apache Airflow: the Core API logout endpoint revokes only a session token presented as the _token cookie. When a client logs out presenting its credential as an Authorization bearer header instead, the endpoint returns its normal logout response but revokes nothing, so the token remains valid until it expires. An attacker who already holds a copy of that token keeps the victim\u0027s access after the victim has logged out and believes the session ended; the default token lifetime is 24 hours and is configurable.\u003cbr\u003e\u003cbr\u003eAffects API clients that authenticate with a bearer token rather than the browser session cookie. The attacker must already possess a copy of a valid token; obtaining one is outside the scope of this issue, and no privileges beyond the victim\u0027s own are gained.\u003cbr\u003e\u003cbr\u003eUsers of apache-airflow are recommended to upgrade to apache-airflow version 3.3.2 or later, which fixes the issue."
            }
          ],
          "value": "Apache Airflow: the Core API logout endpoint revokes only a session token presented as the _token cookie. When a client logs out presenting its credential as an Authorization bearer header instead, the endpoint returns its normal logout response but revokes nothing, so the token remains valid until it expires. An attacker who already holds a copy of that token keeps the victim\u0027s access after the victim has logged out and believes the session ended; the default token lifetime is 24 hours and is configurable.\n\nAffects API clients that authenticate with a bearer token rather than the browser session cookie. The attacker must already possess a copy of a valid token; obtaining one is outside the scope of this issue, and no privileges beyond the victim\u0027s own are gained.\n\nUsers of apache-airflow are recommended to upgrade to apache-airflow version 3.3.2 or later, which fixes the issue."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "text": "low"
            },
            "type": "Textual description of severity"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-613",
              "description": "CWE-613: Insufficient Session Expiration",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-21T14:33:42.328Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/apache/airflow/pull/72649"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.apache.org/thread/k9z1p0q1ng8m68nlnv9d1fqzscrfm7vr"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Apache Airflow: Logout ignores a presented Authorization bearer token, leaving it revocable only by expiry",
      "x_generator": {
        "engine": "airflow-s/generate_cve_json.py"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2026-86473",
    "datePublished": "2026-09-21T14:33:26.110Z",
    "dateReserved": "2026-09-07T15:02:47.876Z",
    "dateUpdated": "2026-09-21T14:33:42.328Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "collectionURL": "https://pypi.python.org",
                "defaultStatus": "unaffected",
                "packageName": "apache-airflow",
                "packageURL": "pkg:pypi/apache-airflow",
                "product": "Apache Airflow",
                "vendor": "Apache Software Foundation",
                "versions": [
                  {
                    "lessThan": "3.3.2",
                    "status": "affected",
                    "version": "3.0.0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "security@apache.org"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Apache Airflow: the Core API logout endpoint revokes only a session token presented as the _token cookie. When a client logs out presenting its credential as an Authorization bearer header instead, the endpoint returns its normal logout response but revokes nothing, so the token remains valid until it expires. An attacker who already holds a copy of that token keeps the victim\u0027s access after the victim has logged out and believes the session ended; the default token lifetime is 24 hours and is configurable.\n\nAffects API clients that authenticate with a bearer token rather than the browser session cookie. The attacker must already possess a copy of a valid token; obtaining one is outside the scope of this issue, and no privileges beyond the victim\u0027s own are gained.\n\nUsers of apache-airflow are recommended to upgrade to apache-airflow version 3.3.2 or later, which fixes the issue."
          }
        ],
        "id": "CVE-2026-86473",
        "lastModified": "2026-09-21T18:10:30.343",
        "metrics": {},
        "published": "2026-09-21T15:17:32.997",
        "references": [
          {
            "source": "security@apache.org",
            "url": "https://github.com/apache/airflow/pull/72649"
          },
          {
            "source": "security@apache.org",
            "url": "https://lists.apache.org/thread/k9z1p0q1ng8m68nlnv9d1fqzscrfm7vr"
          }
        ],
        "sourceIdentifier": "security@apache.org",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-613"
              }
            ],
            "source": "security@apache.org",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


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.