Critical severity · published Aug 6, 2026
CVE-2026-68079
Apache CXF: DefaultEncryptingCodeDataProvider allows unlimited authorization code replay
9.8
CVSS
0.7%
EPSS
No
On KEV
Description
In Apache CXF's DefaultEncryptingCodeDataProvider, a captured authorization code can be redeemed an unlimited number of times due to a flaw in the implementation of the removeCodeGrant functionality. This violates the RFC requirement that "The authorization code MUST NOT be used more than once." Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% 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 4.2.3; 4.0.0 before 4.1.8; before 3.6.12 · source: vendor
CX
Cxf · Apache
before 3.6.12; 4.0.0 before 4.1.8; 4.2.0 before 4.2.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-68079
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-68079
Mailing List
https://lists.apache.org/thread/6m06gdqz4rxhy9g90qz9lyqx2gqmf13o
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/08/06/24
More from Apache CXF
9.8
CVE-2026-66909
Apache CXF: Unsafe deserialization of inbound JMS ObjectMessage
9.8
CVE-2026-50628
Apache CXF: OAuth2: Inverted IP Binding Check Defeats Security Control
9.8
CVE-2026-49875
Apache CXF: XML External Entity (XXE) Injection in W3CMultiSchemaFactory and EndpointReferenceUtils
9.8
CVE-2026-44930
Apache CXF: LDAP Injection vulnerability in XKMS LDAP Repository
9.1
CVE-2026-107938
Apache CXF: The Netty HTTP client transport does not perform TLS hostname verification.