High severity · published Sep 30, 2026
CVE-2026-102142
Kiteworks Core Remote Code Execution through Server-Side Template Injection
7.2
CVSS
1.2%
EPSS
No
On KEV
Description
A system notification template on the Kiteworks appliance was rendered by a template engine that evaluated expressions contained in the stored template body. An authenticated System Administrator could potentially store a crafted template that executed operating-system commands on the appliance when the notification was next sent.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
Core · Kiteworks
before 9.5.1 · source: vendor
KI
Kiteworks · Accellion
before 9.5.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-102142
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-102142
github.com
https://github.com/kiteworks/security-advisories/security/advisories/GHSA-gmgg-7xhc-75f9
third-party-advisory
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json
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