CVE-2026-40944: CWE-295: Improper Certificate Validation in oxia-db oxia
CVE-2026-40944 is a medium severity vulnerability in oxia versions prior to 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.
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 responsible for TLS configuration only parsed the first PEM block in CA certificate files, ignoring additional certificates in a CA bundle such as intermediate or root CAs. This incomplete parsing silently breaks the certificate chain validation process for mTLS connections, potentially undermining the trust model. The vulnerability has a CVSS 4.0 base score of 6.9 (medium severity). The issue is resolved in oxia version 0.16.2.
Potential Impact
The vulnerability causes improper validation of TLS certificates during mTLS authentication by failing to load the full certificate chain from CA bundles. This can lead to acceptance of invalid or untrusted certificates, weakening the security of encrypted communications relying on mTLS. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade oxia to version 0.16.2 or later, where the trustedCertPool() function correctly parses all PEM blocks in CA certificate files, restoring proper certificate chain validation. Patch status is confirmed by the vendor fix in version 0.16.2. No other mitigations are indicated.
CVE-2026-40944: CWE-295: Improper Certificate Validation in oxia-db oxia
Description
CVE-2026-40944 is a medium severity vulnerability in oxia versions prior to 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.
CVSS v4.0
Score 6.9medium
Weaknesses
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 responsible for TLS configuration only parsed the first PEM block in CA certificate files, ignoring additional certificates in a CA bundle such as intermediate or root CAs. This incomplete parsing silently breaks the certificate chain validation process for mTLS connections, potentially undermining the trust model. The vulnerability has a CVSS 4.0 base score of 6.9 (medium severity). The issue is resolved in oxia version 0.16.2.
Potential Impact
The vulnerability causes improper validation of TLS certificates during mTLS authentication by failing to load the full certificate chain from CA bundles. This can lead to acceptance of invalid or untrusted certificates, weakening the security of encrypted communications relying on mTLS. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade oxia to version 0.16.2 or later, where the trustedCertPool() function correctly parses all PEM blocks in CA certificate files, restoring proper certificate chain validation. Patch status is confirmed by the vendor fix in version 0.16.2. No other mitigations are indicated.
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: 4/29/2026, 11:43:11 AM
Last updated: 6/5/2026, 9:39:43 PM
Views: 59
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