CVE-2026-104971— Plane: Cross-Workspace Asset Duplication IDOR + WorkspaceFileAssetEndpoint and FileAssetEndpoint Missing Authorization
Quick assessment
Affected
makeplane plane
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.
Plane 是一个开源的项目管理工具。在 1.4.0 版本之前，存在以下安全漏洞： 在获取源 时，未将其限制在当前调用者所属的工作空间内，从而导致用户可以跨工作空间重复使用资产。 以及旧版的 缺少工作空间级别的权限校验，导致经过身份验证的用户可以在其非成员的工作空间中读取、创建、修改或删除资产。 此外， 方法缺少其同级操作所使用的授权装饰器，暴露出一个未授权的“工作空间视图”读取接口。 该问题已在 1.4.0 版本中修复。
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I. Basic Information for CVE-2026-104971
Vulnerability Information
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Vulnerability Title
Plane: Cross-Workspace Asset Duplication IDOR + WorkspaceFileAssetEndpoint and FileAssetEndpoint Missing Authorization
Source: CVE Program / CVE List V5
Vulnerability Description
Plane is an open-source project management tool. Prior to 1.4.0, DuplicateAssetEndpoint fetches a source FileAsset without limiting it to the caller's workspace, allowing cross-workspace asset duplication. WorkspaceFileAssetEndpoint and the legacy FileAssetEndpoint omit workspace authorization, allowing authenticated users to read, create, modify, or delete assets in workspaces where they are not members. Separately, WorkspaceViewViewSet.retrieve lacks the authorization decorator used by its sibling actions, exposing an unauthorized workspace-view read surface. This issue is fixed in 1.4.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-104971
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-104971 (6)
Same Patch Batch · makeplane · 2026-10-05 · 38 CVEs total
| CVE-2026-105636 | 9.9 CRITICAL | Plane: SSRF via HTTP redirect in webhook delivery (allow_redirects not set) |
| CVE-2026-105639 | 9.8 CRITICAL | Plane: Pre-auth workspace invitation hijack via email-squat and self-served invitation tok |
| CVE-2026-105641 | 9.8 CRITICAL | Plane: Hardcoded SECRET_KEY and LIVE_SERVER_SECRET_KEY shipped in aio/cli community deploy |
| CVE-2026-105637 | 9.6 CRITICAL | Plane: Cross-Project Asset Hijacking via 'ProjectBulkAssetEndpoint' (sibling of CVE-2026-4 |
| CVE-2026-105638 | 9.1 CRITICAL | Plane: Magic-code verifier endpoint has no rate limit, enabling 6-digit OTP brute force |
| CVE-2026-105640 | 9.1 CRITICAL | Plane: Account Takeover via Unverified OAuth Email Match (Gitea, self-managed GitLab) |
| CVE-2026-104968 | 8.7 HIGH | Plane: Cross-workspace member enumeration via /api/workspaces/{slug}/entity-search/ |
| CVE-2026-105630 | 8.7 HIGH | Plane: Stored XSS via SVG attachment served inline on the application origin (account take |
| CVE-2026-105632 | 8.7 HIGH | Plane: Broken Access Control - joinProject GraphQL mutation allows self-join into private |
| CVE-2026-104979 | 8.7 HIGH | Plane: Cross-tenant stored XSS in intake enables account takeover |
| CVE-2026-104976 | 8.7 HIGH | Plane: SSRF in Gitea OAuth |
| CVE-2026-104966 | 8.7 HIGH | Plane: Cross-Workspace IDOR in Estimate and Comment Endpoints Allows Read, Modify, and Inj |
| CVE-2026-104892 | 8.7 HIGH | Plane: Plaintext logging of API token |
| CVE-2026-104978 | 8.2 HIGH | Plane: Invitation Hijack in Project Join Flow via Missing Authorization and Email-Only Acc |
| CVE-2026-104974 | 8.1 HIGH | Plane: Disabled User Auto-Reactivation on Login |
| CVE-2026-105634 | 8.1 HIGH | Plane: Privilege Escalation: Project Guest Can Demote Admin/Member Roles |
| CVE-2026-104970 | 8.1 HIGH | Plane: InstanceAdminSignUpEndpoint TOCTOU race allows two concurrent unauthenticated calle |
| CVE-2026-104977 | 7.7 HIGH | Plane: Incomplete fix of CVE-2026-27706 — SSRF still reachable on: missing is_blocked_ip ( |
| CVE-2026-104973 | 7.6 HIGH | Plane: DNS Rebinding Bypass of CVE-2026-30242 SSRF Fix in Webhook Delivery |
| CVE-2026-105628 | 7.6 HIGH | Plane: OAuth Avatar Redirect SSRF Leads to Internal Data Exfiltration via Static Asset End |
Showing top 20 of 38 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: plane
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CVE-2026-105641
Plane: Hardcoded SECRET_KEY and LIVE_SERVER_SECRET_KEY shipp -
CVE-2026-105640
Plane: Account Takeover via Unverified OAuth Email Match (Gi -
CVE-2026-105639
Plane: Pre-auth workspace invitation hijack via email-squat -
CVE-2026-105638
Plane: Magic-code verifier endpoint has no rate limit, enabl -
CVE-2026-105637
Plane: Cross-Project Asset Hijacking via 'ProjectBulkAssetEn
Same vendor: makeplane
-
CVE-2026-105641
Plane: Hardcoded SECRET_KEY and LIVE_SERVER_SECRET_KEY shipp -
CVE-2026-105640
Plane: Account Takeover via Unverified OAuth Email Match (Gi -
CVE-2026-105639
Plane: Pre-auth workspace invitation hijack via email-squat -
CVE-2026-105638
Plane: Magic-code verifier endpoint has no rate limit, enabl -
CVE-2026-105637
Plane: Cross-Project Asset Hijacking via 'ProjectBulkAssetEn
Same weakness: CWE-639
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V. Comments for CVE-2026-104971
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