CVE-2026-88817 PUBLISHED

Privilege escalation via legacy access group creation endpoint

Assigner: airbus
Reserved: 10.09.2026 Published: 16.09.2026 Updated: 16.09.2026

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.

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	Curiosity GmbH
Product	Curiosity Workspace
Versions	Default: affected Version 26.8.70362 is affected Version 26.8.70363 is unaffected

Solutions

The following updates will fix this vulnerability:

Curiosity Workplace =>26.8.70363

Credits

DELANNOY Marc-Antoine [Airbus Protect] - <vuln@airbus.com> finder

References

https://docs.curiosity.ai/security/advisories/cve-2026-88817

Problem Types

CWE-269 Improper Privilege Management CWE
CWE-284 Improper Access Control CWE