Is CVE-2026-40944 actively exploited?

No active exploitation of CVE-2026-40944 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-40944 be exploited remotely?

Yes. CVE-2026-40944 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-40944?

CVE-2026-40944 has a CVSS score of 6.9 (MEDIUM).

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MEDIUM

CVE-2026-40944

CWE-295Published: April 21, 2026· Updated: Apr 22, 2026

6.9

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:6.4th

Official 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.

NVD Source

Technical Analysis

CVE-2026-40944 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X