---
id: CVE-2026-73179
title: >-
  Improper enforcement of single-use authorization code semantics in the JPA
  OAuth2 authorization code grant provider in Apache CXFallows a remote attacker
  to obtain multiple valid access tokens from a single authorization code via
  concurr…
summary: >-
  Improper enforcement of single-use authorization code semantics in the JPA
  OAuth2 authorization code grant provider in Apache CXFallows a remote attacker
  to obtain multiple valid access tokens from a single authorization code via
  concurr…
severity: none
cwe:
  - CWE-367
published: '2026-10-09'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T16:33:39.007'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73179'
references:
  - url: 'https://lists.apache.org/thread.html/6msbm601o6ogfgdzdbtbrmgspmz50nxk'
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/10/09/5'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
ingestedAt: '2026-10-09T12:53:29.300Z'
---

## Overview

Improper enforcement of single-use authorization code semantics in the JPA OAuth2 authorization code grant provider in Apache CXFallows a remote attacker to obtain multiple valid access tokens from a single authorization code via concurrent token exchange requests that race the non-atomic find-then-delete operation against a shared relational database under READ_COMMITTED isolation. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fixes this issue.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.