What is CVE-2026-115812?

CVE-2026-115812 is a critical-severity vulnerability, classified under Relative Path Traversal. CVSS score: 9.8/10. Published 2026-10-23.

How severe is CVE-2026-115812?

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

CVE-2026-115812

CVE-2026-115812

Relative path traversal during model archive extraction in Amazon Web Services Multi Model Server 1.1.11 and earlier might allow remote actors to execute arbitrary code via a crafted model archive. Multi Model Server is end of life and no fixed version is available. Users should discontinue use of Multi Model Server and migrate to a supported model serving solution.

Published 2026-10-23 · last modified 2026-10-23.

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.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Weakness classification (CWE)

CWE-23 — Relative Path Traversal

References

ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory)

Frequently asked questions

What is CVE-2026-115812?: CVE-2026-115812 is a critical-severity vulnerability, classified under Relative Path Traversal. CVSS score: 9.8/10. Published 2026-10-23.
How severe is CVE-2026-115812?: Critical severity. CVSS v3 base score is 9.8 out of 10.