CVE-2026-40944

Oxia: TLS CA certificate chain validation fails with multi-certificate PEM bundles

MEDIUM

6.9

CVSS Score

Published: April 21, 2026 at 09:14 PM UTC

Updated: June 17, 2026 at 10:45 AM UTC

1 product affected across 1 vendorOxia

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Severity

MEDIUM6.9

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Oxia · Oxia DB

60%

v < 0.16.2

Affected range stops below 0.16.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRM

Source: cverecord

https://github.com/oxia-db/oxia/security/advisories/GHSA-7jrq-q4pq-rhm6

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMGitHub_M

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-295

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