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CVE-2026-73179— Apache CXF: JPA authorization-code consume is non-atomic

Quick assessment

Affected
Apache Software Foundation Apache CXF
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache CXF 的 JPA OAuth2 授权码授予机制中存在授权码语义的单次使用强制执行不当的问题。远程攻击者可以通过并发发送令牌交换请求，利用非原子性的“先查找后删除”操作与共享关系型数据库（在 READ_COMMITTED 隔离级别下）之间的竞争条件，从单个授权码获取多个有效的访问令牌。建议用户升级到修复此问题的版本：4.2.4、4.1.9 或 3.6.13。

AI Predicted 6.5 Difficulty: Moderate
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I. Basic Information for CVE-2026-73179

Vulnerability Information
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Vulnerability Title
Apache CXF: JPA authorization-code consume is non-atomic
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache CXF 4.2.0 ~ 4.2.4 -

II. Public POCs for CVE-2026-73179

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III. Intelligence Information for CVE-2026-73179

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Other References for CVE-2026-73179 (1)

Same Patch Batch · Apache Software Foundation · 2026-10-09 · 13 CVEs total

CVE-2026-103413 8.8 HIGH Apache Camel Karavan: unvalidated Kubernetes resources applied from a project's kubernetes
CVE-2026-103412 8.8 HIGH Apache Camel Karavan: project file name path traversal when committing a project to Git
CVE-2026-108039 Apache CXF: Prevent unbounded XML document size in StaxUtils by adding default element and
CVE-2026-107938 Apache CXF: The Netty HTTP client transport does not perform TLS hostname verification.
CVE-2026-107937 Apache CXF: The attachment header size and count limits can be bypassed, which allows deni
CVE-2026-100227 Apache CXF: XML Signature wrapping in JAX-RS XML Security
CVE-2026-97791 Apache CXF: STSTokenValidator can accept untrusted SAML assertions because it shares valid
CVE-2026-97468 Apache CXF: Authentication bypass via weak cache keys for validated STS tokens
CVE-2026-86463 Apache CXF: FIQL Query Parser Denial of Service
CVE-2026-79650 Apache CXF: OIDC RP Open Redirect
CVE-2026-78384 Apache CXF: Unbounded DEFLATE Decompression in CXF JOSE/JWE and SAML Processing (Decompres
CVE-2026-71575 Apache CXF: Inoperative max_age authentication-freshness check in OidcClientCodeRequestFil

IV. Related Vulnerabilities

Same product: Apache CXF
Same vendor: Apache Software Foundation
Same weakness: CWE-367

V. Comments for CVE-2026-73179

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