CVE-2026-23514
Accellion Kiteworks 9.2.0 … 9.2.1
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSummary
CVE-2026-23514 is a high-severity Improper Ownership Management (CWE-282) vulnerability in Accellion Kiteworks. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Path Interception (T1034); ranked in the top 39% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to AC-16 (Security and Privacy Attributes) and AC-3 (Access Enforcement) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2026-23514 is an access control vulnerability (CWE-282) affecting Kiteworks Core, the core component of Kiteworks, a private data network (PDN). The issue impacts versions 9.2.0 and 9.2.1, enabling authenticated users to access unauthorized content. Published on 2026-03-25, it carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating high severity due to network accessibility, low attack complexity, and significant impacts on confidentiality, integrity, and availability.
An authenticated user with low privileges (PR:L) can exploit this vulnerability remotely over the network without user interaction. Successful exploitation allows the attacker to access content they are not authorized for, potentially leading to unauthorized data exposure, modification, or disruption of services, as reflected in the high impact ratings across confidentiality, integrity, and availability.
The Kiteworks security advisory recommends upgrading Kiteworks Core to version 9.2.2 or later to apply the patch that addresses this vulnerability. Further details are available in the advisory at https://github.com/kiteworks/security-advisories/security/advisories/GHSA-5gqr-cpr6-wvm5.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-15419
Vulnerability Data
Kiteworks is a private data network (PDN). Versions 9.2.0 and 9.2.1 of Kiteworks Core have an access control vulnerability that allows authenticated users to access unauthorized content. Upgrade Kiteworks Core to version 9.2.2 or later to receive a patch.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
—
—
- 1 hardening rule · 1 OS baseline
—
Mitigating Controls (NIST 800-53 r5) AI
Security attributes explicitly include ownership, so proper attribute association and management stops incorrect ownership assignment.
Access enforcement requires correct ownership verification before granting access to objects or resources.
Access decisions must be based on accurate ownership data for each request.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Managing and enforcing access permissions and authorizations directly addresses correct ownership assignment and verification for resources.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Access control policies can enforce correct ownership assignment and verification for objects.
Identity management processes help ensure objects are assigned to the correct, verified owners.
Managing access rights includes verifying and maintaining proper ownership of resources.
Privileged access rights management requires accurate ownership to prevent unauthorized privilege escalation.
Information access restriction mechanisms rely on correct ownership to enforce access decisions.
Access to source code control depends on proper ownership assignment to protect intellectual property.
Hardening callouts derived
Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).
Windows Server 2016 (1 rule)
- V-224973 The Active Directory Domain Controllers Organizational Unit (OU) object must have the proper access control permissions. prevents CWE-282