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TI-2026-65244 Aliases CVE-2026-102108

Kiteworks Email Protection Gateway deserialization of untrusted data

Priority LOW 37CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

An authenticated administrator of Kiteworks Email Protection Gateway could submit a crafted serialized object to a cluster management interface that was deserialized without sufficient validation, potentially allowing arbitrary code execution in the context of the gateway service account. Exploitation requires an administrator account holding a specific queue-management privilege.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01459 73rd percentileScored 2026-11-07
Fix Fixed Email Protection Gateway (Kiteworks): 9.5.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AccellionEmail Protection Gatewaybefore 9.5.09.5.0Patch availableCNA
  • Email Protection Gateway VendorAccellion Affected before 9.5.0 Fixed in 9.5.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:accellion:kiteworks:*:*:*:*:*:*:*:*before 9.5.0VulnerableAccellion
  • cpe:2.3:a:accellion:kiteworks:*:*:*:*:*:*:*:* Versions before 9.5.0 Vulnerable ·Accellion

Remediation

  • Fix · CNA Email Protection Gateway (Kiteworks) Fixed in 9.5.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Kiteworks Email Protection Gateway 9.5.0

    13 records Highest priority Priority MEDIUM 6 MEDIUM, 7 LOW

    Other records, highest priority first

    • TI-2026-65241 Kiteworks Email Protection Gateway server-side request forgeryPriority MEDIUM 48
    • TI-2026-65242 Kiteworks Email Protection Gateway improper authenticationPriority MEDIUM 47
    • TI-2026-65238 Kiteworks Email Protection Gateway server-side request forgeryPriority MEDIUM 47
    Show all 13 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-102108
  2. 2026-10-09 EPSS moved to the 50th–90th percentile

References

Advisory 2

  • TI-2021-11694 Accellion Kiteworks before 7.4.0 allows an authenticated user to perform SQL Injection via LDAPGroup Search. CVSS 3.1HIGH 8.8
  • TI-2026-65251 Kiteworks Core Authentication Bypass in the Password Reset Workflow CVSS 3.1CRITICAL 9.8
  • TI-2026-65284 Kiteworks Email Protection Gateway Improper Access Control CVSS 3.1CRITICAL 9.4
  • TI-2026-65241 Kiteworks Email Protection Gateway server-side request forgery CVSS 3.1CRITICAL 9.1
  • TI-2026-65242 Kiteworks Email Protection Gateway improper authentication CVSS 3.1CRITICAL 9.1
  • TI-2026-65238 Kiteworks Email Protection Gateway server-side request forgery CVSS 3.1CRITICAL 9.1
See all 81 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences