CVE-2026-40944: CWE-295: Improper Certificate Validation in oxia-db oxia
CVE-2026-40944 is a vulnerability in oxia prior to version 0. 16. 2 where the trustedCertPool() function only parses the first PEM block from CA certificate files. This causes incomplete loading of CA bundles containing multiple certificates, breaking certificate chain validation for mutual TLS (mTLS). The issue is fixed in version 0. 16. 2. The vulnerability has a medium severity with a CVSS 4. 0 base score of 6. 9.
AI Analysis
Technical Summary
Oxia, a metadata store and coordination system, had an improper certificate validation vulnerability (CWE-295) in versions before 0.16.2. The trustedCertPool() function in the TLS configuration only parsed the first PEM block from CA certificate bundles, ignoring additional certificates such as intermediate CAs. This incomplete loading breaks the certificate chain validation process for mTLS connections, potentially undermining the trust model. The vulnerability was addressed and fixed in oxia version 0.16.2.
Potential Impact
The vulnerability causes silent failure of certificate chain validation in mTLS when CA bundles contain multiple certificates. This can lead to improper trust decisions in TLS connections, potentially allowing unauthorized entities to be trusted if the certificate chain is not fully validated. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade oxia to version 0.16.2 or later, where the trustedCertPool() function correctly parses all PEM blocks in CA bundles, restoring proper certificate chain validation. Patch status is not explicitly stated but the fix is included in version 0.16.2. Users should verify they are running this version or later to mitigate the vulnerability.
CVE-2026-40944: CWE-295: Improper Certificate Validation in oxia-db oxia
Description
CVE-2026-40944 is a vulnerability in oxia prior to version 0. 16. 2 where the trustedCertPool() function only parses the first PEM block from CA certificate files. This causes incomplete loading of CA bundles containing multiple certificates, breaking certificate chain validation for mutual TLS (mTLS). The issue is fixed in version 0. 16. 2. The vulnerability has a medium severity with a CVSS 4. 0 base score of 6. 9.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Oxia, a metadata store and coordination system, had an improper certificate validation vulnerability (CWE-295) in versions before 0.16.2. The trustedCertPool() function in the TLS configuration only parsed the first PEM block from CA certificate bundles, ignoring additional certificates such as intermediate CAs. This incomplete loading breaks the certificate chain validation process for mTLS connections, potentially undermining the trust model. The vulnerability was addressed and fixed in oxia version 0.16.2.
Potential Impact
The vulnerability causes silent failure of certificate chain validation in mTLS when CA bundles contain multiple certificates. This can lead to improper trust decisions in TLS connections, potentially allowing unauthorized entities to be trusted if the certificate chain is not fully validated. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade oxia to version 0.16.2 or later, where the trustedCertPool() function correctly parses all PEM blocks in CA bundles, restoring proper certificate chain validation. Patch status is not explicitly stated but the fix is included in version 0.16.2. Users should verify they are running this version or later to mitigate the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-15T20:40:15.519Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e7f01d19fe3cd2cdfcab47
Added to database: 4/21/2026, 9:46:05 PM
Last enriched: 4/21/2026, 10:02:20 PM
Last updated: 4/21/2026, 11:11:22 PM
Views: 4
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