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TI-2026-65282 Aliases CVE-2026-102146

Kiteworks Email Protection Gateway Arbitrary File Write through Server-Side Template Injection

Priority LOW 31CWE-73Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

An authenticated Email Protection Gateway administrator holding only limited, delegated permissions could write files with attacker-controlled content to arbitrary locations accessible to the Email Protection Gateway service account. This exceeds the administrator's intended privileges and could be used to alter application files and configuration or to disrupt the availability of the service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01009 63rd percentileScored 2026-11-07
Fix Fixed Email Protection Gateway (Kiteworks): 9.5.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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 9.5.19.5.1Patch availableCNA
  • Email Protection Gateway VendorAccellion Affected before 9.5.1 Fixed in 9.5.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:accellion:kiteworks:*:*:*:*:*:*:*:*before 9.5.1VulnerableAccellion
  • cpe:2.3:a:accellion:kiteworks:*:*:*:*:*:*:*:* Versions before 9.5.1 Vulnerable ·Accellion

Remediation

  • Fix · CNA Email Protection Gateway (Kiteworks) Fixed in 9.5.1

Fixed in the same release

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

  • Release ·

    Kiteworks Email Protection Gateway 9.5.1

    9 records Highest priority Priority MEDIUM 1 MEDIUM, 8 LOW

    Other records, highest priority first

    • TI-2026-65284 Kiteworks Email Protection Gateway Improper Access ControlPriority MEDIUM 48
    • TI-2026-65279 Kiteworks Email Protection Gateway Unrestricted Upload of File with Dangerous TypePriority LOW 39
    • TI-2026-65264 Kiteworks Email Protection Gateway Improper AuthenticationPriority LOW 38
    Show all 9 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-102146
  2. 2026-10-14 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