{"id":"CVE-2026-40944","aliases":["GHSA-7jrq-q4pq-rhm6","GO-2026-5226"],"url":"https://o3.security/vulnerability/CVE-2026-40944","summary":"Oxia: TLS CA certificate chain validation fails with multi-certificate PEM bundles","details":"Oxia is a metadata store and coordination system. Prior to 0.16.2, 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. This vulnerability is fixed in 0.16.2.","published":"2026-04-21T21:14:56.814Z","modified":"2026-08-07T11:31:06.323056520Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/oxia-db/oxia","fixedVersion":"0.16.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40944.json"},{"type":"ADVISORY","url":"https://github.com/oxia-db/oxia/security/advisories/GHSA-7jrq-q4pq-rhm6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40944"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:31:06.323056520Z"}}