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CVE-2026-115812— Relative path traversal during model archive extraction in Amazon Web Services Multi Model Server

Quick assessment

Affected
AWS multi-model-server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Amazon Web Services 多模型服务器（Multi Model Server）1.1.11 及更早版本中，模型归档文件解压过程中存在相对路径遍历漏洞，可能允许远程攻击者通过构造恶意模型归档文件执行任意代码。 多模型服务器已停止服务（End of Life），且无修复版本可用。用户应立即停止使用多模型服务器，并迁移至受支持的其他模型服务解决方案。

CVSS 9.8 · Critical EPSS 0.73% · P54

Affected Version Matrix 1

VendorProduct Version RangeStatus
AWS multi-model-server ≤ 1.1.11 affected
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I. Basic Information for CVE-2026-115812

Vulnerability Information
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Vulnerability Title
Relative path traversal during model archive extraction in Amazon Web Services Multi Model Server
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
相对路径遍历
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
AWS multi-model-server 0 ~ 1.1.11 -

II. Public POCs for CVE-2026-115812

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III. Intelligence Information for CVE-2026-115812

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Vendor Advisories for CVE-2026-115812 (1)

Same Patch Batch · AWS · 2026-10-23 · 3 CVEs total

CVE-2026-115845 6.4 MEDIUM Incomplete validation in the run_script Python sandbox in AWS MCP Server
CVE-2026-115813 5.8 MEDIUM Server-side request forgery in the model download path in Amazon Web Services Multi Model

IV. Related Vulnerabilities

Same product: multi-model-server
Same vendor: AWS
Same weakness: CWE-23

V. Comments for CVE-2026-115812

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