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CVE-2026-40945— Oxia: Bearer token exposed in debug log messages on authentication failure

Quick assessment

Affected
oxia-db oxia
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.

oxia是Oxia开源的一个分布式元数据存储与协调系统。 Oxia 0.16.2之前版本存在日志信息泄露漏洞，该漏洞源于OIDC身份验证失败时，完整的承载令牌以明文形式记录在DEBUG级别，如果生产环境中启用了调试日志记录，可能导致JWT令牌暴露在应用程序日志和任何连接的日志聚合系统中。

AI Predicted 7.5 Difficulty: Easy EPSS 0.54% · P44

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-40945

Vulnerability Information
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Vulnerability Title
Oxia: Bearer token exposed in debug log messages on authentication failure
Source: CVE Program / CVE List V5
Vulnerability Description
Oxia is a metadata store and coordination system. Prior to 0.16.2, when OIDC authentication fails, the full bearer token is logged at DEBUG level in plaintext. If debug logging is enabled in production, JWT tokens are exposed in application logs and any connected log aggregation system. This vulnerability is fixed in 0.16.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
oxia 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
oxia是Oxia开源的一个分布式元数据存储与协调系统。 Oxia 0.16.2之前版本存在日志信息泄露漏洞，该漏洞源于OIDC身份验证失败时，完整的承载令牌以明文形式记录在DEBUG级别，如果生产环境中启用了调试日志记录，可能导致JWT令牌暴露在应用程序日志和任何连接的日志聚合系统中。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
oxia-db oxia < 0.16.2 -

II. Public POCs for CVE-2026-40945

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III. Intelligence Information for CVE-2026-40945

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Same Patch Batch · oxia-db · 2026-04-21 · 4 CVEs total

CVE-2026-40943 Oxia: Server crash via race condition in session heartbeat handling
CVE-2026-40944 Oxia: TLS CA certificate chain validation fails with multi-certificate PEM bundles
CVE-2026-40946 Oxia: OIDC token audience validation bypass via SkipClientIDCheck

IV. Related Vulnerabilities

Same product: oxia
Same vendor: oxia-db
Same weakness: CWE-532

V. Comments for CVE-2026-40945

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