What is CVE-2026-31234?

CVE-2026-31234 is a critical-severity vulnerability in N/a, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-05-12.

How severe is CVE-2026-31234?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Deserialization in N/a

CVE-2026-31234

Horovod thru 0.28.1 contains an insecure deserialization vulnerability (CWE-502) in its KVStore HTTP server component. The KVStore server, used for distributed task coordination, lacks authentication and authorization controls, allowing an…

Vulnerability class: Insecure Deserialization

EPSS: 0.007 (73.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-31234?: CVE-2026-31234 is a critical-severity vulnerability in N/a, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-05-12.
How severe is CVE-2026-31234?: Critical severity. CVSS v3 base score is 9.8 out of 10.