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Apache Airflow: Logout ignores a presented Authorization bearer token, leaving it revocable only by expiry

Type: advisorySource: OSV1 source record

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.

Announced Source revision 1
Original source ↗

BIT-airflow-2026-86473

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:BIT-airflow-2026-86473

airflow

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
3.3.2

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "SEMVER",
        "events": [
          {
            "introduced": "3.0.0"
          },
          {
            "fixed": "3.3.2"
          }
        ]
      }
    ],
    "package": {
      "name": "airflow",
      "purl": "pkg:bitnami/airflow",
      "ecosystem": "Bitnami"
    },
    "severity": [
      {
        "type": "CVSS_V3",
        "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
      }
    ],
    "database_specific": {
      "source": "https://github.com/bitnami/vulndb/tree/main/data/airflow/BIT-airflow-2026-86473.json"
    }
  }
]
Related CVEs
CVE-2026-86473

Source reference: /aliases

Publisher severity

critical

Source reference: /database_specific/severity

Event
#25922 · Revision 1
Added to Heist Feed
Publisher date
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