PatchTheCVECVE-2026-102106: Improper authentication in a Kiteworks Email Protection Gateway administrative service
CVE-2026-102106 is a critical-severity flaw (CVSS 9.1) affecting kiteworks. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Improper authentication in a Kiteworks Email Protection Gateway administrative service. An administrative service in Kiteworks Email Protection Gateway did not consistently enforce administrator authentication, so the required password check could be bypassed. An attacker who referenced a valid administrator account could potentially create, modify, or delete internal users and managed domains and change their security-feature configuration witho
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.1 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.1% (top 35%) |
| CISA exploited list | No |
| Weakness | CWE-287 |
| Published | 2026-09-30 |
| Last modified | 2026-10-08 |
Last updated 2026-10-08 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-102106?
kiteworks: upgrade to 9.5.0. Exact commands for each OS are on this page.
Is CVE-2026-102106 being exploited?
CVE-2026-102106 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-102106 affect?
CVE-2026-102106 affects kiteworks. Severity is critical (CVSS 9.1). Improper authentication in a Kiteworks Email Protection Gateway administrative service. An administrative service in Kiteworks Email Protection Gateway did not consistently enforce administrator authentication, so the required password chec
How urgent is CVE-2026-102106?
Priority 53/100. Critical severity; Remotely exploitable, no login, no user action
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