Secuno
ENNL
Book demo

CVE-2026-102106

Accellion Kiteworks authentication bypass

9.1 CRITICALEPSS 1.07%
  1. Published30 Sept 2026

Description

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 without authenticating; deleting a managed domain also removes its user accounts and could lock administrators out of the gateway.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected products

Accellion Kiteworks< 9.5.0

Remediation

Fixed in
Accellion Kiteworks≥ 9.5.0

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-843138.8
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, POST…
CVE-2026-1093728.7
ZITADEL 4.x before 4.19.2 and 3.x through 3.4.15 contains an authentication bypass in…
CVE-2026-1093138.1
Grav Login plugin 2.7.0 before 3.9.9 contains an authentication bypass vulnerability…
CVE-2026-1093128.1
Grav Login plugin 2.7.0 before 3.9.9 contains an authentication bypass in…
CVE-2026-10890710.0
A vulnerability was determined in Netcore NR268 1.7.121109. Affected is the function…
CVE-2026-1088658.2
AmoyLab Unla through 0.10.0 contains an authentication bypass vulnerability that allows…

Frequently asked

Is CVE-2026-102106 being actively exploited?

CVE-2026-102106 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.07%.

How severe is CVE-2026-102106?

CVE-2026-102106 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 1.07% probability of exploitation.

Which products are affected by CVE-2026-102106?

Affected products include Accellion Kiteworks.

How do I fix CVE-2026-102106?

Upgrade affected software to a fixed version, for example Accellion Kiteworks 9.5.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-102106 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.