CVE-2026-48726: Apache Airflow Auth Manager Doesn't Invalidate JWT Vulnerability

MODERATE
Advisory Identifier: GHSA-vr7m-c6v4-8cx8
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CVSS 6.5
CWE-613
Published
Advisory Summary

CVE-2026-48726 is a MODERATE (CVSS 6.5) auth manager doesn't invalidate jwt vulnerability (CWE-613: Insufficient Session Expiration) affecting Apache Airflow libraries in the PyPI ecosystem. The issue involves auth manager doesn't invalidate jwt tokens after users click logout. Remediation is available by upgrading affected packages to version 3.2.2.

CVE-2026-48726 at a Glance

CVE Identifier CVE-2026-48726
GHSA Identifier GHSA-vr7m-c6v4-8cx8
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-613: Insufficient Session Expiration
Affected Product Apache Airflow
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-48726

To remediate this vulnerability, upgrade all affected Apache Airflow dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

apache-airflow fixed: 3.2.2 
pip install apache-airflow>=3.2.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show apache-airflow

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-48726, inspect your installed packages using pip:

pip show apache-airflow

Analyze the terminal output to locate any version of Apache Airflow in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.2.2), your application is affected.

Note: The pip show apache-airflow command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-613: Insufficient Session Expiration, where according to wasc, "insufficient session expiration is when a web site permits an attacker to reuse old session credentials or session ids for authorization.". In Apache Airflow, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A bug in Apache Airflow's auth manager logout handling left previously-issued JWT tokens valid after the user clicked logout in the UI: the logout flow for `FabAuthManager` and `KeycloakAuthManager` did not actually reach the underlying `revoke_token()` call, so the JWT remained accepted by the API server until its natural expiry. An attacker holding a previously-issued JWT for a logged-out user could continue to make authenticated API calls as that user. Affects deployments configured with `FabAuthManager` or `KeycloakAuthManager` (the bug does not affect SimpleAuthManager). This is a residual gap in the fix for CVE-2025-57735, which addressed cookie-side invalidation in PR #57992 / PR #61339 but did not cover the provider-side `revoke_token()` reachability in the FAB / Keycloak code paths. Users who already upgraded for CVE-2025-57735 should additionally upgrade to `apache-airflow` 3.2.2 or later to cover the FAB / Keycloak logout paths.

CVE-2026-48726 Affected Apache Airflow Versions

1 component(s)
Fixed Versions:
3.2.2
Product / Package Ecosystem Affected Versions Fixed Version
apache-airflow
pypi/apache-airflow
PyPI
< 3.2.2
3.2.2

References

NVD — CVE-2026-48726 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-48726
Apache Airflow Source Repository REPOSITORY
https://github.com/apache/airflow/pull/67289
Apache Airflow Source Repository REPOSITORY
https://github.com/apache/airflow
Apache Airflow Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-187.yaml
lists.apache.org/thread/630jg4z6cjkv... WEB
https://lists.apache.org/thread/630jg4z6cjkv4m2yv2ljgmf1zhdj1vqx
CVE Official Record — CVE-2026-48726 CVE
https://www.cve.org/CVERecord?id=CVE-2025-57735

Frequently Asked Questions

What is CVE-2026-48726?
CVE-2026-48726 is a security vulnerability in Apache Airflow involving Auth manager doesn't invalidate JWT tokens after users click logout under CWE-613: Insufficient Session Expiration.
Which Apache Airflow versions are affected?
Affected versions include releases prior to 3.2.2 across affected packages: apache-airflow.
What version fixes CVE-2026-48726?
Upgrading to 3.2.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is apache-airflow affected?
Yes, apache-airflow is affected in releases prior to 3.2.2. Upgrade your dependency to 3.2.2 or later.
What is the CVSS score of CVE-2026-48726?
CVE-2026-48726 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2026-48726?
CVE-2026-48726 is classified under CWE-613: Insufficient Session Expiration (According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization.").
How can I check PyPI dependencies for CVE-2026-48726?
Run the dependency tree command: 'pip show apache-airflow'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-vr7m-c6v4-8cx8",
  "modified" : "2026-07-08T19:45:43Z",
  "published" : "2026-06-01T09:31:15Z",
  "aliases" : [ "CVE-2026-48726" ],
  "summary" : "Apache Airflow: Auth manager doesn't invalidate JWT tokens after users click logout",
  "details" : "A bug in Apache Airflow's auth manager logout handling left previously-issued JWT tokens valid after the user clicked logout in the UI: the logout flow for `FabAuthManager` and `KeycloakAuthManager` did not actually reach the underlying `revoke_token()` call, so the JWT remained accepted by the API server until its natural expiry. An attacker holding a previously-issued JWT for a logged-out user could continue to make authenticated API calls as that user. Affects deployments configured with `FabAuthManager` or `KeycloakAuthManager` (the bug does not affect SimpleAuthManager). This is a residual gap in the fix for CVE-2025-57735, which addressed cookie-side invalidation in PR #57992 / PR #61339 but did not cover the provider-side `revoke_token()` reachability in the FAB / Keycloak code paths. Users who already upgraded for CVE-2025-57735 should additionally upgrade to `apache-airflow` 3.2.2 or later to cover the FAB / Keycloak logout paths.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "apache-airflow"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.2.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-48726"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/airflow/pull/67289"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/airflow"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-187.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/630jg4z6cjkv4m2yv2ljgmf1zhdj1vqx"
  }, {
    "type" : "WEB",
    "url" : "https://www.cve.org/CVERecord?id=CVE-2025-57735"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-613" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-08T19:45:43Z",
    "nvd_published_at" : "2026-06-01T09:16:20Z"
  }
}