CVE-2026-102146: Kiteworks Email Protection Gateway · External Control of File Name or Path
Affects Kiteworks Email Protection GatewaySource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium : upgrade to 9.5.1 when convenient.
Data as of 14 Nov 2026, 20:43 UTC
- EPSS
- 1.0% chance of exploitation in 30 days – higher than 63% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 9.5.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 30 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 14 Nov 2026.
What to do
Upgrade Kiteworks Email Protection Gateway to 9.5.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| KiteworksEmail Protection Gateway | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, restrict delegated administrator permissions and monitor for unauthorized file modifications.
Description
CVE-2026-102146 is a vulnerability in Kiteworks Email Protection Gateway where an authenticated administrator with limited delegated permissions can write files with attacker-controlled content to arbitrary locations accessible by the service account. This privilege escalation can lead to modification of application files or configurations and potentially disrupt service availability. The vulnerability affects versions prior to 9.5.1. The CVSS score is 6.5, indicating a medium severity impact.