CVE-2026-73179 Apache CXF: JPA authorization-code consume is non-atomic
A race condition in Apache CXF's JPA OAuth2 provider allows attackers to reuse authorization codes, potentially leading to unauthorized access token generation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-73179?
CVE-2026-73179 is a high-severity vulnerability in Apache Cxf, published on 9 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-367
Which versions are affected by CVE-2026-73179?
It affects 1 product.
Products include Apache Cxf.
How do I fix CVE-2026-73179?
Upgrade to a fixed version.
Is CVE-2026-73179 being exploited?
There is no known exploitation of CVE-2026-73179 in the wild and no public exploit code.
Other vulnerabilities in Apache Cxf
- CVE-2012-2379 XML Signature/Encryption Not Validated in Apache CXF
- CVE-2026-66909 Apache CXF: Unsafe deserialization of inbound JMS ObjectMessage
- CVE-2026-68079 Apache CXF: DefaultEncryptingCodeDataProvider allows unlimited authorization code replay
- CVE-2026-50628 Apache CXF: OAuth2: Inverted IP Binding Check Defeats Security Control
- CVE-2025-48913 Apache CXF: Untrusted JMS configuration can lead to RCE
Sources
Also known as CLEANSTART-2026-VE39696, GHSA-4856-vwpx-pmq8.