CVE-2026-106497— Backstage: Inconsistent catalog property permission evaluation
Quick assessment
Affected
backstage backstage
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.
Backstage 是用于构建开发者门户的开放框架。在 3.9.1 版本之前，@backstage/plugin-catalog-backend 包存在目录属性权限评估不一致的问题。在使用受影响的基于值的目录权限条件作为机密性边界的那些部署环境中，经过身份验证的用户可能会收到目录实体的数据，而这些数据原本是由策略作者限制访问的。该问题已在 3.9.1 版本中修复。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-106497
Vulnerability Information
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Vulnerability Title
Backstage: Inconsistent catalog property permission evaluation
Source: CVE Program / CVE List V5
Vulnerability Description
Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent catalog property permission evaluation. In deployments that use affected value-based catalog permission conditions as a confidentiality boundary, an authenticated user could receive catalog entity data that policy authors intended to restrict. This issue is fixed in version 3.9.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
大小写敏感处理不恰当
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| backstage | backstage | < 1.54.6 | - |
|
| @backstage | plugin-catalog-backend | < 3.9.1 | - |
|
II. Public POCs for CVE-2026-106497
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Pages for CVE-2026-106497 (1)
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🔗 Release v1.54.6 · backstage/backstage · GitHub x_refsource_MISC
Other References for CVE-2026-106497 (2)
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https://github.com/backstage/backstage/security/advisories/GHSA-8429-xpcj-3cg5 x_refsource_CONFIRM
Same Patch Batch · backstage · 2026-10-06 · 32 CVEs total
| CVE-2026-106501 | 9.6 CRITICAL | Backstage: Sensitive information exposure in Scaffolder |
| CVE-2026-106459 | 8.5 HIGH | Backstage: Improper input validation in Sentry scaffolder actions |
| CVE-2026-106500 | 8.5 HIGH | Backstage: Improper task state validation in Scaffolder backend |
| CVE-2026-106486 | 8.5 HIGH | Backstage: Improper filesystem validation in Bitbucket pull-request scaffolder actions |
| CVE-2026-106503 | 8.1 HIGH | Backstage: Scaffolder action input authorization bypass |
| CVE-2026-106488 | 8.1 HIGH | Backstage: Improper authentication in the OIDC provider |
| CVE-2026-106455 | 7.7 HIGH | Backstage: Improper validation of MkDocs plugin configuration in TechDocs |
| CVE-2026-106498 | 7.7 HIGH | Backstage: Improper URL validation in catalog entity placeholder resolution |
| CVE-2026-106509 | 7.7 HIGH | Backstage: Improper validation of MkDocs theme configuration in TechDocs |
| CVE-2026-106505 | 7.7 HIGH | Backstage: Bypass of MkDocs configuration sanitizer in TechDocs backend |
| CVE-2026-106492 | 7.6 HIGH | Backstage: Improper preservation of access restrictions during service credential delegati |
| CVE-2026-106460 | 6.8 MEDIUM | Backstage: Explicit negative email verification can be ignored during shared OAuth profile |
| CVE-2026-106457 | 6.8 MEDIUM | Backstage: Insufficient audience validation in the Cloudflare Access auth provider |
| CVE-2026-106490 | 6.5 MEDIUM | Backstage: Improper input validation in TechDocs static content requests |
| CVE-2026-106489 | 6.5 MEDIUM | Backstage: Improper authorization enforcement for TechDocs static content |
| CVE-2026-106458 | 6.5 MEDIUM | Backstage: Inconsistent repository filtering in Bitbucket Server catalog event updates |
| CVE-2026-106504 | 6.5 MEDIUM | Backstage: Sensitive information exposure in scaffolder task logs |
| CVE-2026-106491 | 6.4 MEDIUM | Backstage: Improper input validation in proxy-backend |
| CVE-2026-106462 | 6.4 MEDIUM | Backstage: Scaffolder credential handling may allow unintended GitHub authentication fallb |
| CVE-2026-106463 | 5.4 MEDIUM | Backstage: Improper authorization in GitLab organizational user ingestion |
Showing top 20 of 32 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: backstage
-
CVE-2026-106509
Backstage: Improper validation of MkDocs theme configuration -
CVE-2026-106508
Backstage: Potential file exposure through local TechDocs pu -
CVE-2026-106507
Backstage: TechDocs arbitrary file read via mkdocs snippets -
CVE-2026-106506
Backstage: Improper input validation in scaffolder task list -
CVE-2026-106505
Backstage: Bypass of MkDocs configuration sanitizer in TechD
Same vendor: backstage
-
CVE-2026-106509
Backstage: Improper validation of MkDocs theme configuration -
CVE-2026-106508
Backstage: Potential file exposure through local TechDocs pu -
CVE-2026-106507
Backstage: TechDocs arbitrary file read via mkdocs snippets -
CVE-2026-106506
Backstage: Improper input validation in scaffolder task list -
CVE-2026-106505
Backstage: Bypass of MkDocs configuration sanitizer in TechD
Same weakness: CWE-178
-
CVE-2026-106503
Backstage: Scaffolder action input authorization bypass -
CVE-2026-100693
Hugo v0.162.0 before v0.166.0 IP-literal Deny Rule Bypass -
CVE-2026-100669
Grav before 2.0.25 Sensitive File Disclosure via Case-Variat -
CVE-2026-100580
OpenClaw before 2026.7.1 Remote Code Execution via cron tool -
CVE-2026-100541
OpenClaw Matrix before 2026.8.1 Authorization Bypass via Cas
V. Comments for CVE-2026-106497
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