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CVE-2026-14904— RES Auth.GetUserPrivateKey Arbitrary File Read

Quick assessment

Affected
AWS res
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 research and engineering studio是美国Amazon公司的一个研发工程工作室。 Amazon Research and Engineering Studio 2026.03及之前版本存在后置链接漏洞，该漏洞源于Auth.GetUserPrivateKey API中存在文件访问前链接解析不当问题，可能导致经过身份验证的远程用户通过将SSH私钥文件替换为指向主机上任意文件的符号链接，读取cluster-manager EC2实例上的任意文件。

CVSS 6.5 · Medium EPSS 0.57% · P45

Affected Version Matrix 1

VendorProduct Version RangeStatus
AWS res ≤ 2026.03 affected
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I. Basic Information for CVE-2026-14904

Vulnerability Information
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Vulnerability Title
RES Auth.GetUserPrivateKey Arbitrary File Read
Source: CVE Program / CVE List V5
Vulnerability Description
AWS Research and Engineering Studio (RES) is an open-source solution that enables researchers and engineers to create and manage secure virtual desktops and computing resources on AWS. Improper link resolution before file access issue (CWE-59) in the Auth.GetUserPrivateKey API. An authenticated remote user could read arbitrary files on the cluster-manager EC2 instance by replacing their SSH private key file (~/.ssh/id_rsa) with a symbolic link targeting any file on the host. Because the cluster-manager process runs as root, any file readable by root is exposed, including other users' SSH private keys and application configuration secrets. It's recommended to upgrade to RES version 2026.06.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
Amazon Research and Engineering Studio 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Amazon research and engineering studio是美国Amazon公司的一个研发工程工作室。 Amazon Research and Engineering Studio 2026.03及之前版本存在后置链接漏洞，该漏洞源于Auth.GetUserPrivateKey API中存在文件访问前链接解析不当问题，可能导致经过身份验证的远程用户通过将SSH私钥文件替换为指向主机上任意文件的符号链接，读取cluster-manager EC2实例上的任意文件。
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 res 0 ~ 2026.03 -

II. Public POCs for CVE-2026-14904

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III. Intelligence Information for CVE-2026-14904

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Vendor Advisories for CVE-2026-14904 (1)

Vendor Pages for CVE-2026-14904 (1)

IV. Related Vulnerabilities

Same vendor: AWS
Same weakness: CWE-59

V. Comments for CVE-2026-14904

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