🛡️ CVE-2026-40943
🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-362 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Oxia is a metadata store and coordination system. Prior to 0.16.2, a race condition between session heartbeat processing and session closure can cause the server to panic with send on closed channel. The heartbeat() method uses a blocking channel send while holding a mutex, and under specific timing with concurrent close() calls, this can lead to either a deadlock (channel buffer full) or a panic (send on closed channel after TOCTOU gap in KeepAlive). This vulnerability is fixed in 0.16.2.

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE CWE-362
Public Exploit ✅ No
Source NVD
Published 2026-04-14
Updated 2026-06-02
Modified 2026-05-05
Fix URL N/A

Affected Packages

Software From version Fixed in
github.com/oxia-db/oxia — —
unknown — —

Similar Threats

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