CVE-2026-102125

HIGH 8.8

Kiteworks Core Sandbox Escape

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

The sandbox that isolates document conversion on a Kiteworks appliance did not fully confine the code running inside it. Code already executing within that sandbox could potentially escape its confinement and act with the privileges of the service account that runs the application, which could allow an attacker in that position to read or modify application data and configuration, or to disrupt the service on the affected appliance.

CWE	CWE-653 CWE-668
Vendor	kiteworks
Product	core
Published	Sep 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Kiteworks / Core

0 < 9.5.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/kiteworks/security-advisories/security/advisories/GHSA-58j2-hj9r-c258 raw.githubusercontent.com: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json

Credits

Icare, https://yeswehack.com/hunters/icare Supr4s, https://yeswehack.com/hunters/Supr4s wlayzz, https://yeswehack.com/hunters/wlayzz truff, https://yeswehack.com/hunters/truff