CVE-2026-77169
Quick assessment
Affected
Nextcloud Team Folders
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.
在“团队文件夹”（原“群文件夹”）应用与“工作区”应用配合使用时存在一个漏洞，该漏洞允许仅通过 API/REST 的委派管理员绕过文件夹级别的授权控制。工作区应用允许组织通过 API/REST 委派有限的团队文件夹管理权限，并限制管理员只能访问其拥有高级权限的文件夹。
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I. Basic Information for CVE-2026-77169
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the team folders (formerly group folders) app when used in combination with the workspace app allowed API/REST-only delegated administrators to bypass folder-level authorization controls. The workspace app enables organizations to delegate limited administrative privileges for team folder management via API/REST only, restricting access to folders for which the admin has advanced permissions.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Nextcloud | Team Folders | 13.0.0 ~ 22.0.0 | - |
|
II. Public POCs for CVE-2026-77169
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-77169 (1)
Same Patch Batch · Nextcloud · 2026-09-18 · 7 CVEs total
| CVE-2026-77170 | Deck配置API越权设置任意看板配置漏洞 | |
| CVE-2026-77164 | Nextcloud Circles盲SSRF漏洞 | |
| CVE-2026-82982 | CVE-2026-82982 | |
| CVE-2026-82980 | CVE-2026-82980 | |
| CVE-2026-82985 | CVE-2026-82985 | |
| CVE-2026-68493 | CVE-2026-68493 |
IV. Related Vulnerabilities
Same weakness: CWE-284
V. Comments for CVE-2026-77169
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