CVE-2026-102146

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/kiteworks/security-advisories/security/advisories/GHSA-5pgq-v8g2-rg2f	Vendor Advisory
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json	Broken Link

Configurations

Configuration 1 (hide)

cpe:2.3:a:accellion:kiteworks:*:*:*:*:*:*:*:*

History

13 Oct 2026, 11:57

Type	Values Removed	Values Added
First Time		Accellion Accellion kiteworks
CPE		cpe:2.3:a:accellion:kiteworks::::::::
References	~~() https://github.com/kiteworks/security-advisories/security/advisories/GHSA-5pgq-v8g2-rg2f -~~	() https://github.com/kiteworks/security-advisories/security/advisories/GHSA-5pgq-v8g2-rg2f - Vendor Advisory
References	~~() https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json -~~	() https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json - Broken Link

30 Sep 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-30 21:17

Updated : 2026-10-13 11:57

NVD link : CVE-2026-102146

Mitre link : CVE-2026-102146

CVE.ORG link : CVE-2026-102146

JSON object : View

Products Affected

accellion

kiteworks

CWE

CWE-73

External Control of File Name or Path

{"id": "CVE-2026-102146", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-102146", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-01T13:25:37.802471Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "9119a7d8-5eab-497f-8521-727c672e3725", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 5.2, "exploitabilityScore": 1.2}]}, "affected": [{"source": "9119a7d8-5eab-497f-8521-727c672e3725", "affectedData": [{"vendor": "Kiteworks", "product": "Email Protection Gateway", "versions": [{"status": "affected", "version": "0", "lessThan": "9.5.1", "versionType": "custom"}, {"status": "unaffected", "version": "9.5.1"}], "defaultStatus": "unknown"}]}], "published": "2026-09-30T21:17:03.510", "references": [{"url": "https://github.com/kiteworks/security-advisories/security/advisories/GHSA-5pgq-v8g2-rg2f", "tags": ["Vendor Advisory"], "source": "9119a7d8-5eab-497f-8521-727c672e3725"}, {"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json", "tags": ["Broken Link"], "source": "9119a7d8-5eab-497f-8521-727c672e3725"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "9119a7d8-5eab-497f-8521-727c672e3725", "description": [{"lang": "en", "value": "CWE-73"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-10-13T11:57:18.230", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:accellion:kiteworks:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E3DAD823-F1FD-402B-86A5-C69DD8261D4B", "versionEndExcluding": "9.5.1"}], "operator": "OR"}]}], "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725"}