CVE-2026-29184— @backstage/plugin-scaffolder-backend: Potential Session Token Exfiltration via Log Redaction Bypass
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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
II. Public POCs for CVE-2026-29184
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Same Patch Batch · backstage · 2026-03-07 · 3 CVEs total
| CVE-2026-29186 | 7.7 HIGH | @backstage/plugin-techdocs-node: TechDocs Mkdocs Configuration Key Enables Arbitrary Code |
| CVE-2026-29185 | 2.7 LOW | @backstage/integration: Potential reading of SCM URLs using built in token |
IV. Related Vulnerabilities
Same product: backstage
- CVE-2026-29186
@backstage/plugin-techdocs-node: TechDocs Mkdocs Configurati - CVE-2026-29185
@backstage/integration: Potential reading of SCM URLs using - CVE-2026-25152
@backstage/plugin-techdocs-node vulnerable to possible Path - CVE-2026-25153
@backstage/plugin-techdocs-node vulnerable to arbitrary code - CVE-2026-24048
Backstage has a Possible SSRF when reading from allowed URL'
Same vendor: backstage
- CVE-2026-29186
@backstage/plugin-techdocs-node: TechDocs Mkdocs Configurati - CVE-2026-29185
@backstage/integration: Potential reading of SCM URLs using - CVE-2026-25152
@backstage/plugin-techdocs-node vulnerable to possible Path - CVE-2026-25153
@backstage/plugin-techdocs-node vulnerable to arbitrary code - CVE-2026-24048
Backstage has a Possible SSRF when reading from allowed URL'
Same weakness: CWE-532
- CVE-2026-42282
n8n-MCP: Sensitive MCP tool-call arguments logged on authent - CVE-2026-41495
n8n-MCP Logs Sensitive Request Data on Unauthorized /mcp Req - CVE-2026-41004
VMware Spring Cloud Config 日志信息泄露漏洞 - CVE-2024-30151
HCL BigFix Service Management (SM) is susceptible to Broken - CVE-2026-7824
PaperCut Hive (Ricoh): Plain text password in logs
V. Comments for CVE-2026-29184
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