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CVE-2026-85012— OS command injection in the Amazon CodeCatalyst blueprints SDK

Quick assessment

Affected
AWS @amazon-codecatalyst/blueprints.blueprint
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.

Amazon Blueprints是美国Amazon公司的一个软件开发模板组件。 Amazon Blueprints 0.3.156之前版本存在命令注入漏洞，该漏洞源于蓝图再合成框架对OS命令中使用的特殊元素中和不当，具有仓库提交权限的用户可通过特制的.ownership-file文件中[local]合并策略条目的owner字段中的shell元字符，在蓝图再合成环境中执行任意命令。

CVSS 8.0 · High EPSS 1.06% · P62

Affected Version Matrix 1

VendorProduct Version RangeStatus
AWS @amazon-codecatalyst/blueprints.blueprint < 0.3.156 affected
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I. Basic Information for CVE-2026-85012

Vulnerability Information
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Vulnerability Title
OS command injection in the Amazon CodeCatalyst blueprints SDK
Source: CVE Program / CVE List V5
Vulnerability Description
Improper neutralization of special elements used in an OS command (CWE-78) in the blueprint resynthesis framework in Amazon Web Services codecatalyst-blueprints before 0.3.156 might allow a user with permission to commit to a repository in the project to execute arbitrary commands in the blueprint resynthesis environment via shell metacharacters in the owner field of a [local] merge strategy entry in a crafted .ownership-file. Version 0.3.156 removes shell interpretation of the owner field, running the command directly rather than through a shell, and rejects values outside an allowlisted command form. This eliminates shell metacharacter command injection. To remediate this issue, users should upgrade to version 0.3.156 or later. No action is required for use of the Amazon CodeCatalyst service. Resynthesis runs in an isolated per-project environment with scoped credentials, and the service applies server-side validation there that rejects [local] merge strategy commands outside a restricted allowlisted form, including for blueprint versions published before 0.3.156.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Amazon Blueprints 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Amazon Blueprints是美国Amazon公司的一个软件开发模板组件。 Amazon Blueprints 0.3.156之前版本存在命令注入漏洞，该漏洞源于蓝图再合成框架对OS命令中使用的特殊元素中和不当，具有仓库提交权限的用户可通过特制的.ownership-file文件中[local]合并策略条目的owner字段中的shell元字符，在蓝图再合成环境中执行任意命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
AWS @amazon-codecatalyst/blueprints.blueprint 0 ~ 0.3.156 -

II. Public POCs for CVE-2026-85012

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III. Intelligence Information for CVE-2026-85012

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Vendor Advisories for CVE-2026-85012 (2)

Vendor Pages for CVE-2026-85012 (1)

IV. Related Vulnerabilities

Same vendor: AWS
Same weakness: CWE-78

V. Comments for CVE-2026-85012

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