Critical severity · published Oct 23, 2026
CVE-2026-115812
Relative path traversal during model archive extraction in Amazon Web Services Multi Model Server
New
9.8
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MU
multi-model-server · AWS
through 1.1.11 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-115812
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-115812
aws.amazon.com
https://aws.amazon.com/security/security-bulletins/2026-148-aws/
More from multi-model-server
5.8
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Server-side request forgery in the model download path in Amazon Web Services Multi Model Server