CVE-2026-88817— Privilege escalation via legacy access group creation endpoint
Quick assessment
Affected
Curiosity GmbH Curiosity Workspace
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.
Curiosity Workspace 中经过身份验证的非访客用户，可以在没有邀请或审批的情况下，自行将自己注册为某个现有访问组的成员和该组的管理员。 该漏洞不会授予应用级的管理员权限，也无法利用此漏洞获取应用程序或其底层主机的 root 权限。
Possible ATT&CK Techniques 1 AI
T1078 · Valid Accounts
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I. Basic Information for CVE-2026-88817
Vulnerability Information
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Vulnerability Title
Privilege escalation via legacy access group creation endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
An authenticated, non-guest user of Curiosity Workspace could enroll themselves as an administrator and member of an existing access group without an invitation or approval.
It did not grant application-wide administrator privileges, and the vulnerability could not be used to obtain root access to the application or its underlying host.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Curiosity GmbH | Curiosity Workspace | 26.8.70362 | - |
|
II. Public POCs for CVE-2026-88817
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-88817 (1)
-
🔗 Curiosity - CVE-2026-88817 vendor-advisory
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V. Comments for CVE-2026-88817
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