CVE-2026-88817

Privilege escalation via legacy access group creation endpoint

Published Sep 16, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

The following updates will fix this vulnerability: * Curiosity Workplace =>26.8.70363

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Curiosity
Curiosity curiosity Workspace
Vendors & Products Curiosity
Curiosity curiosity Workspace
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Privilege escalation via legacy access group creation endpoint
Weaknesses CWE-269
CWE-284
References
Metrics cvssV4_0

{'score': 8.7, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
airbus
Published
Updated
Sep 16, 2026, 1:13 PM
Reserved
Sep 10, 2026, 8:48 AM
Status
Deferred
Published
Sep 16, 2026, 1:18 PM
Modified
Sep 23, 2026, 11:10 AM