CVE-2026-86462: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-5j5v-7fmw-4hvh
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CVSS 9.1
CWE-613
Published
Advisory Summary

CVE-2026-86462 is a CRITICAL (CVSS 9.1) security vulnerability vulnerability (CWE-613: Insufficient Session Expiration) affecting Software libraries in the Maven ecosystem. The weakness occurs when according to wasc, "insufficient session expiration is when a web site permits an attacker to reuse old session credentials or session ids for authorization.". Remediation is available in the latest vendor maintenance releases.

CVE-2026-86462 at a Glance

CVE Identifier CVE-2026-86462
GHSA Identifier GHSA-5j5v-7fmw-4hvh
Severity CRITICAL
CVSS v3.1 Base Score 9.1
CWE Classification CWE-613: Insufficient Session Expiration
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.1

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

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

How to Fix CVE-2026-86462

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

Verify Direct and Transitive Dependencies

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

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-86462, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

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

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

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 Software, 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

Apache Airflow FAB provider: changing a user's password through the Admin user-edit PATCH endpoint does not invalidate that user's existing database-backed sessions. An attacker who already holds a copy of the victim's session cookie keeps full access as that user after the password change, so the password reset does not evict them. Affects deployments using the FAB auth manager with database-backed sessions; an administrator (or the user themselves) performing a routine password change is the trigger, and no attacker interaction with the endpoint is needed. This is a second, independent route to the outcome addressed by CVE-2026-82311, which corrected an identifier comparison in the session-invalidation helper. That fix does not repair this endpoint, because the PATCH path never calls the helper at all. Deployments that applied the CVE-2026-82311 fix must also upgrade for this one. Users of apache-airflow-providers-fab are recommended to upgrade to version 3.9.0 or later, which fixes the issue.

References

NVD — CVE-2026-86462 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-86462
Software Source Repository REPOSITORY
https://github.com/apache/airflow/pull/72657
lists.apache.org/thread/7sr4sggfv5fh... WEB
https://lists.apache.org/thread/7sr4sggfv5fhhl3qgphcq0rlhg81do1s
lists.apache.org/thread/7sr4sggfv5fh... WEB
https://lists.apache.org/thread/7sr4sggfv5fhhl3qgphcq0rlhg81do1s?users@airflow.apache.org
CVE Official Record — CVE-2026-86462 CVE
https://www.cve.org/CVERecord?id=CVE-2026-82311

Frequently Asked Questions

What is CVE-2026-86462?
CVE-2026-86462 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-613: Insufficient Session Expiration.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-86462?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-86462?
CVE-2026-86462 has a CVSS v3.1 base score of 9.1 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2026-86462?
CVE-2026-86462 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 Maven dependencies for CVE-2026-86462?
Run the dependency tree command: 'mvn dependency:tree'. 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-5j5v-7fmw-4hvh",
  "modified" : "2026-09-17T21:31:33Z",
  "published" : "2026-09-16T09:30:28Z",
  "aliases" : [ "CVE-2026-86462" ],
  "details" : "Apache Airflow FAB provider: changing a user's password through the Admin user-edit PATCH endpoint does not invalidate that user's existing database-backed sessions. An attacker who already holds a copy of the victim's session cookie keeps full access as that user after the password change, so the password reset does not evict them. Affects deployments using the FAB auth manager with database-backed sessions; an administrator (or the user themselves) performing a routine password change is the trigger, and no attacker interaction with the endpoint is needed.\n\nThis is a second, independent route to the outcome addressed by CVE-2026-82311, which corrected an identifier comparison in the session-invalidation helper. That fix does not repair this endpoint, because the PATCH path never calls the helper at all. Deployments that applied the CVE-2026-82311 fix must also upgrade for this one.\n\nUsers of apache-airflow-providers-fab are recommended to upgrade to version 3.9.0 or later, which fixes the issue.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-86462"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/airflow/pull/72657"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/7sr4sggfv5fhhl3qgphcq0rlhg81do1s"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/7sr4sggfv5fhhl3qgphcq0rlhg81do1s?users@airflow.apache.org"
  }, {
    "type" : "WEB",
    "url" : "https://www.cve.org/CVERecord?id=CVE-2026-82311"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-613" ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-16T09:17:07Z"
  }
}