CVE-2026-115812

Relative path traversal during model archive extraction in Amazon Web Services Multi Model Server

State: Published
Severity: 9.3 Critical
Published: Oct 23, 2026
Updated: Oct 23, 2026
Reserved: Oct 23, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	9.3 Critical	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	AMZN
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	AMZN

Weaknesses

CWE-23 Relative path traversal

Affected Products

Product	Versions
multi-model-serverAWS	1.1.11 and earlierAffected

References

https://aws.amazon.com/security/security-bulletins/2026-148-aws/vendor-advisory

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