CVE-2026-73179
Published:October 09, 2026
Updated:October 13, 2026
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.
Affected Packages
org.apache.cxf:cxf-rt-rs-security-oauth2 (JAVA):
Affected version(s) >=2.6.0 <3.6.13Fix Suggestion:
Update to version 3.6.13org.apache.cxf:cxf-rt-rs-security-oauth2 (JAVA):
Affected version(s) >=4.0.0 <4.1.9Fix Suggestion:
Update to version 4.1.9org.apache.cxf:cxf-rt-rs-security-oauth2 (JAVA):
Affected version(s) >=4.2.0 <4.2.4Fix Suggestion:
Update to version 4.2.4Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Time-of-check Time-of-use (TOCTOU) Race Condition
EPSS
Base Score:
0.22