High severity · published Oct 9, 2026
CVE-2026-73179
Apache CXF: JPA authorization-code consume is non-atomic
8.1
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
Apache CXF · Apache Software Foundation
4.2.0 before 4.2.4; 4.0.0 before 4.1.9; before 3.6.13 · source: vendor
CX
Cxf · Apache
before 3.6.13; 4.0.0 before 4.1.9; 4.2.0 before 4.2.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-73179
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-73179
vendor-advisory
https://lists.apache.org/thread.html/6msbm601o6ogfgdzdbtbrmgspmz50nxk
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