Kiteworks Core deserialization of untrusted data

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-102101
StatePUBLISHED
Assignercisa-cg
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-30 21:16:56 UTC
Updated2026-10-07 13:25:15 UTC
DescriptionKiteworks Core before version 9.5.0 is vulnerable to Deserialization of Untrusted Data. A deserialization weakness in Kiteworks Core could, under certain conditions, allow crafted data to be deserialized unsafely, potentially resulting in remote code execution on the appliance. Exploitation depends on an attacker first being able to influence the affected data, so this issue is not exploitable on its own.

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from 9119a7d8-5eab-497f-8521-727c672e3725

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS: 0.003060000 probability, percentile 0.213950000 (date 2026-10-07)

Problem Types: CWE-502 | CWE-502 CWE-502 Deserialization of Untrusted Data

VersionSourceTypeScoreSeverityVector
3.19119a7d8-5eab-497f-8521-727c672e3725Secondary8.1HIGHCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED8.1HIGHCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Accellion Kiteworks All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Kiteworks Core affected 9.5.0 custom Not specified
CNA Kiteworks Core unaffected 9.5.0 Not specified

References

ReferenceSourceLinkTags
raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json 9119a7d8-5eab-497f-8521-727c672e3725 raw.githubusercontent.com Broken Link
github.com/kiteworks/security-advisories/security/advisories/GHSA-x5hx-f... 9119a7d8-5eab-497f-8521-727c672e3725 github.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Icare, https://yeswehack.com/hunters/icare (en)

CNA: Supr4s, https://yeswehack.com/hunters/Supr4s (en)

CNA: wlayzz, https://yeswehack.com/hunters/wlayzz (en)

CNA: truff, https://yeswehack.com/hunters/truff (en)

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