Kiteworks
CVE-2026-28271
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication DNS-independent verification
|
| Impact | CVSS 6.5 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. Exploitation requires authentication. Exploitable via remote/network. |
| Exploit ScenarioDerived | A remote attacker (requires authentication) could exploit this vulnerability to compromise the affected system. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Kiteworks versions prior to 9.2.0 contain a DNS rebinding vulnerability that allows authenticated administrators to circumvent SSRF protections and access restricted internal services. An attacker with administrative privileges could exploit this misconfiguration to reach backend systems that should be isolated from external access. No patch is currently available for affected deployments.
Earlier versions of this analysis (1)
Kiteworks is a private data network (PDN). Prior to version 9.2.0, a vulnerability in Kiteworks configuration functionality allows bypassing of SSRF protections through DNS rebinding attacks. [CVSS 6.5 MEDIUM]
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
Affects your stack
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Technical ContextAI · show details
Affects the Kiteworks configuration component of Kiteworks. Kiteworks is a private data network (PDN). Prior to version 9.2.0, a vulnerability in Kiteworks configuration functionality allows bypassing of SSRF protections through DNS rebinding attacks. Malicious administrators could exploit this to access internal services that should be restricted. Version 9.2.0 contains a patch for the issue.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
DescriptionGitHub Advisory
Kiteworks is a private data network (PDN). Prior to version 9.2.0, a vulnerability in Kiteworks configuration functionality allows bypassing of SSRF protections through DNS rebinding attacks. Malicious administrators could exploit this to access internal services that should be restricted. Version 9.2.0 contains a patch for the issue.
Executive ViewAI
Organizations using Kiteworks configuration functionality allows bypassing of SSRF protections should be aware of notable risk from CVE-2026-28271 rated CVSS 6.5. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.
Affected Products (CPE)GitHub Advisory
Unauthenticated attackers who know a target's email address can take over Kiteworks Core accounts that use locally store
Improper certificate-assignment controls in Kiteworks Email Protection Gateway allow a remote, unauthenticated attacker
Stored cross-site scripting in Kiteworks Core (all versions prior to 9.5.0) enables unauthenticated attackers to persist
Authentication bypass in Kiteworks Email Protection Gateway (versions before 9.5.0) lets unauthenticated remote attacker
Server-side request forgery in Kiteworks Email Protection Gateway (versions before 9.5.0) lets a remote, unauthenticated
Server-side request forgery in Kiteworks Email Protection Gateway before 9.5.0 allows a remote, unauthenticated sender t
Unauthenticated server-side request forgery in Kiteworks Email Protection Gateway before version 9.5.0 lets a remote att
Server-side request forgery in Kiteworks Email Protection Gateway before 9.5.0 allows a remote, unauthenticated attacker
Server-side request forgery in Kiteworks Email Protection Gateway (all versions before 9.5.0) lets a remote, unauthentic
Command injection in Kiteworks Core's internal cluster-management function allows an attacker who already has code execu
Sandbox escape in Kiteworks Core's document-conversion feature (CVE-2026-102125, CVSS 8.8) allows code already executing
Authenticated privilege escalation in Kiteworks PDN (the Accellion-line private data network) before version 9.1.0 lets
Exploit-DB