CVE-2026-40944

MEDIUM

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

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v4 6.9
EPSS 0.0016
EPSS Percentile 5.6%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-295
Status published
Products (2)
oxia-db/oxia 0 - 0.16.2Go
oxia-db/oxia < 0.16.2
Published Apr 21, 2026
Tracked Since Apr 22, 2026