CVSS 4.0
8.7 highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NCVE-2026-40943
High (8.7). EPSS 0.2% chance of exploitation in the next 30 days. Fixed in github.com/oxia-db/oxia 0.16.2.
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.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 10% of CVEs (scores of 2026-10-31)
- CWE
- CWE-362
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-5gqc-qhrj-9xw8 | Go | github.com/oxia-db/oxia | <0.16.2 | 0.16.2 |
| GO-2026-5145 | Go | github.com/oxia-db/oxia | <0.16.2 | 0.16.2 |