Status: UPDATED | Advisory ID: CVE-2026-86473
| CVE | CVE-2026-86473 |
| CVSS Score / Version | 9.1 (Critical) / CVSS v3.1 |
| Updated | 2026-09-25 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is none. |
| Affected products | Apache airflow and Apache Software Foundation Apache Airflow |
| Classified as | CWE-613 (Insufficient Session Expiration) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Apache | airflow | ||
| Apache Software Foundation | Apache Airflow |
| Subsystems | General OT |
| Sectors | Multiple |
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. (NVD)
Monitor Apache's and Apache Software Foundation's web pages for any future patch releases. See vendor advisory link below.
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-86473 |
| CVE | https://www.cve.org/CVERecord?id=CVE-2026-86473 |
| Vendor advisory | https://github.com/apache/airflow/pull/72649 |