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I. Basic Information for CVE-2026-29184
Vulnerability Information

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Vulnerability Title
@backstage/plugin-scaffolder-backend: Potential Session Token Exfiltration via Log Redaction Bypass
Source: NVD (National Vulnerability Database)
Vulnerability Description
Backstage is an open framework for building developer portals. Prior to version 3.1.4, a malicious scaffolder template can bypass the log redaction mechanism to exfiltrate secrets provided run through task event logs. This issue has been patched in version 3.1.4.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过日志文件的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Backstage 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Backstage是Backstage开源的一个应用软件。后台是一个开放的平台,用于构建开发者门户。 Backstage 3.1.4之前版本存在日志信息泄露漏洞,该漏洞源于恶意脚手架模板可绕过日志编辑机制,可能导致通过任务事件日志泄露秘密。
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
VendorProductAffected VersionsCPESubscribe
backstagebackstage < 3.1.4 -
II. Public POCs for CVE-2026-29184
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III. Intelligence Information for CVE-2026-29184
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