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Kiteworks Core CVE-2026-102132

| EUVDEUVD-2026-90285 HIGH
Improper Access Control (CWE-284)
2026-09-30 cisa-cg
7.2
CVSS 3.1 · Vendor: cisa-cg
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate as delegated admin
  2. Delivery
    Invoke administrative import function
  3. Exploit
    Import privileged integration credential
  4. Execution
    Bypass entitlement check
  5. Impact
    Gain full system-administrator privileges

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK

1 technique across 1 tactic: Defense Evasion

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Requires an authenticated delegated (non-system) administrator account holding at least one narrowly scoped administrative permission on Kiteworks Core prior to 9.5.1. The specific trigger is the administrative import function used to import an integration credential: it fails to verify that the requesting administrator is entitled to create the privileged credential being imported. No user interaction from any existing system administrator is needed (UI:N), and no non-default configuration is required beyond the presence of a delegated-admin role - this is the intended least-privilege delegation model being subverted. The principal limiting factor is the PR:H prerequisite: an external unauthenticated attacker cannot reach this path without first obtaining delegated-admin credentials.

Impact

Vendor CVSS 3.1 rates this 7.2 (High) with vector AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H, and I concur with the metrics - the one nuance is that PR:H is genuine and materially caps real-world risk: the attacker must already hold a valid delegated-administrator account with at least one narrowly scoped admin permission, so this is an insider/lateral privilege-escalation issue, not an unauthenticated internet-facing takeover. No EPSS score, KEV entry, or public POC is provided; per the precision rules this is 'no public exploit identified at time of analysis.' There is no SSVC decision block in the input. The signals are internally consistent (no CVSS-vs-description conflict): AV:N is reasonable because the administrative import function is reached over the management network/API, and the C:H/I:H/A:H total-impact rating is justified because the end state is full system-administrator privilege. Net: a real and serious escalation-of-privilege flaw for organizations that use Kiteworks delegated/least-privilege admin models, but the PR:H gate and absence of any exploitation evidence place it below the unauthenticated Kiteworks issues in the same advisory batch - treat as a prompt-patch item rather than an emergency.

Exploit ScenarioDerived

An organization delegates a single narrow admin permission (for example, integration or import management) to a junior operator. That operator uses the administrative import function to import a privileged integration credential; because the function never checks whether the requesting admin is entitled to create that credential, the operator effectively grants themselves full system-administrator rights with no action by any existing sysadmin. No public exploit code is currently identified.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.5% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 30, 2026

Privilege escalation in Kiteworks Core versions before 9.5.1 allows an authenticated delegated administrator holding only a single narrowly scoped administrative permission to obtain full system administrator privileges by abusing the administrative import function for integration credentials, which fails to verify that the requesting administrator is entitled to create the privileged credential being imported (CVE-2026-102132, CVSS 7.2 High). The attacker must already possess a valid delegated-admin account (PR:H), so this is an insider or lateral privilege-escalation issue rather than an unauthenticated internet-facing takeover, and no action by an existing system administrator is required for the escalation to succeed (UI:N). A vendor patch is available in Kiteworks Core 9.5.1; no public exploit code or confirmed active exploitation has been identified at time of analysis.

RemediationAI

Upgrade Kiteworks Core to version 9.5.1 or later, which is the vendor-released fix for this improper access control issue (vendor advisory: https://github.com/kiteworks/security-advisories/security/advisories/GHSA-qx8c-x3hv-c25g). Because exploitation requires an existing delegated-admin account, immediate compensating actions should focus on reducing the population of accounts that can reach the vulnerable import path: audit all delegated administrator accounts and revoke or narrow any that hold administrative permissions they no longer need, and temporarily suspend delegation of the permission(s) that grant access to the integration-credential import function until patching completes - the trade-off being that legitimate delegated workflows involving credential import will be blocked during that window. Additionally, monitor and alert on integration-credential creation or import events originating from delegated-admin sessions, and review existing integration credentials to detect any unapproved or unexpectedly privileged creations, rotating those credentials as a precaution; note that credential rotation will require reconfiguration of the dependent integrations. No public exploit code has been identified, so these steps are preventative hardening rather than emergency containment, but the vendor patch should be applied as the primary and definitive remedy.

Affected VersionsENISA

core 0 <9.5.1

Affected Packages

euvd core fix: 9.5.1

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The flaw is an improper access control (CWE-284) issue in the administrative import workflow of Kiteworks Core, a secure file sharing and content collaboration platform. Kiteworks supports delegated administration, where an administrator is granted a narrow set of administrative permissions rather than full system rights. The import function that ingests an integration credential is supposed to check whether the caller holds the authority to create that specific privileged credential, but the authorization check is missing or insufficient. As a result, a delegated administrator whose role grants only one narrow administrative permission can supply or trigger an import that mints a credential with system-administrator-level integration privileges, effectively bypassing the intended least-privilege delegation model. The affected product is identified by CPE cpe:2.3:a:kiteworks:core:*:*:*:*:*:*:*:*, with EUVD-2026-90285 listing core versions from 0 up to (but not including) 9.5.1. The CVSS 3.1 vector AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H confirms network reachability and full confidentiality, integrity, and availability impact on the vulnerable component, while the PR:H metric reflects that the attacker must already hold valid delegated-administrator credentials - the same nuance emphasized in the independent assessment.

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Severity by source

Vendor (cisa-cg) PRIMARY 7.2 HIGH
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
vuln.today AI 7.2 HIGH

PR:H because a valid delegated-admin account is required; AV:N/AC:L for the network-reachable import function with no special conditions; C/I/A:H as the outcome is full system-admin control.

3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (cisa-cg).

CVSS VectorVendor: cisa-cg

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Patch available
Sep 30, 2026 - 21:04 EUVD
CVE Published
Sep 30, 2026 - 20:13 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 30, 2026 - 20:13 cve.org
HIGH 7.2

DescriptionCVE.org

An administrative import function in Kiteworks Core did not verify that the requesting administrator was entitled to create the privileged integration credential being imported. A delegated administrator holding a single narrowly scoped administrative permission could therefore obtain full system administrator privileges, without any action by an existing system administrator.

Technical POC Analysis

Evidence basis: GHSA-qx8c-x3hv-c25g only.

Full technical POC analysis - root cause, step-by-step exploitation and patch breakdown - is part of the Pro and Business plans.

Executive ViewAI

Why It Matters

Kiteworks Core versions prior to 9.5.1 contain a privilege escalation vulnerability that allows an authenticated delegated administrator with only a single narrowly scoped permission to obtain full system administrator privileges. This could enable an insider or compromised account to access and manipulate sensitive files, settings, and integrations, undermining the security of the organization's secure file sharing environment. Leadership should prioritize patching because the vulnerability affects any organization using the affected Kiteworks Core versions and could lead to data breaches or operational disruption.

Business Impact: High
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.5%
Top 60% exploitable
Prevalence
Medium
Kiteworks secure file-sharing/MFT appliance, common in regulated enterprises but not ubiquitous
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.5%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Total

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

CVE-2026-102115 CRITICAL
9.8 Sep 30

Unauthenticated attackers who know a target's email address can take over Kiteworks Core accounts that use locally store

CVE-2026-102149 CRITICAL
9.4 Sep 30

Improper certificate-assignment controls in Kiteworks Email Protection Gateway allow a remote, unauthenticated attacker

CVE-2026-102147 CRITICAL
9.3 Sep 30

Stored cross-site scripting in Kiteworks Core (all versions prior to 9.5.0) enables unauthenticated attackers to persist

CVE-2026-102106 CRITICAL
9.1 Sep 30

Authentication bypass in Kiteworks Email Protection Gateway (versions before 9.5.0) lets unauthenticated remote attacker

CVE-2026-102105 CRITICAL
9.1 Sep 30

Server-side request forgery in Kiteworks Email Protection Gateway (versions before 9.5.0) lets a remote, unauthenticated

CVE-2026-102095 CRITICAL
9.1 Sep 30

Server-side request forgery in Kiteworks Email Protection Gateway before 9.5.0 allows a remote, unauthenticated sender t

CVE-2026-102104 CRITICAL
9.1 Sep 30

Unauthenticated server-side request forgery in Kiteworks Email Protection Gateway before version 9.5.0 lets a remote att

CVE-2026-102103 CRITICAL
9.1 Sep 30

Server-side request forgery in Kiteworks Email Protection Gateway before 9.5.0 allows a remote, unauthenticated attacker

CVE-2026-102102 CRITICAL
9.1 Sep 30

Server-side request forgery in Kiteworks Email Protection Gateway (all versions before 9.5.0) lets a remote, unauthentic

CVE-2026-102120 HIGH
8.8 Sep 30

Command injection in Kiteworks Core's internal cluster-management function allows an attacker who already has code execu

CVE-2026-102125 HIGH
8.8 Sep 30

Sandbox escape in Kiteworks Core's document-conversion feature (CVE-2026-102125, CVSS 8.8) allows code already executing

CVE-2025-53939 HIGH
8.8 Nov 29

Authenticated privilege escalation in Kiteworks PDN (the Accellion-line private data network) before version 9.1.0 lets

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