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CVE-2026-88817

HIGHCVSS 8.7/10EPSS 0.27%

Last modified

CVE-2026-88817 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. 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.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 4.0
8.7/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability
0.27%

19.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
Curiosity GmbHCuriosity Workspace26.8.70362

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-88817?
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.
How severe is CVE-2026-88817?
CVE-2026-88817 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.
How do I fix CVE-2026-88817?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST