CVE-2026-40944: Oxia's TLS CA certificate chain validation fails with multi-certificate PEM bundles

April 14, 2026 (updated April 24, 2026)

The trustedCertPool() function in the TLS configuration only parses the first PEM block from CA certificate files. When a CA bundle contains multiple certificates (e.g., intermediate + root CA), only the first certificate is loaded. This silently breaks certificate chain validation for mTLS.

References

github.com/advisories/GHSA-7jrq-q4pq-rhm6
github.com/oxia-db/oxia
github.com/oxia-db/oxia/security/advisories/GHSA-7jrq-q4pq-rhm6
nvd.nist.gov/vuln/detail/CVE-2026-40944

Code Behaviors & Features

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