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44 vulnerabilities found for Email Protection Gateway by Kiteworks
CVE-2026-102149 (GCVE-0-2026-102149)
Vulnerability from nvd – Published: 2026-09-30 20:09 – Updated: 2026-09-30 20:54
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Improper Access Control
Summary
Kiteworks Email Protection Gateway did not sufficiently restrict which account a certificate could be assigned to. This could allow an attacker to associate a certificate with another user's account, affecting the confidentiality and integrity of that account's encrypted mail and, where certificate-based login is enabled, potentially permitting unauthorized access to the account.
Severity
9.4 (Critical)
CWE
- CWE-306 - Missing Authentication for Critical Function
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.1
(custom)
Unaffected: 9.5.1 |
Date Public
2026-09-30 00:00
{
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}
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"lang": "en",
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}
],
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"integrityImpact": "HIGH",
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CVE-2026-102146 (GCVE-0-2026-102146)
Vulnerability from nvd – Published: 2026-09-30 20:08 – Updated: 2026-09-30 20:08
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Arbitrary File Write through Server-Side Template Injection
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.
Severity
6.5 (Medium)
CWE
- CWE-73 - External Control of File Name or Path
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.1
(custom)
Unaffected: 9.5.1 |
Date Public
2026-09-30 00:00
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}
]
}
],
"credits": [
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"lang": "en",
"value": "Supr4s, https://yeswehack.com/hunters/supr4s"
}
],
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{
"lang": "en",
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}
],
"metrics": [
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"attackVector": "NETWORK",
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}
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CVE-2026-102144 (GCVE-0-2026-102144)
Vulnerability from nvd – Published: 2026-09-30 20:09 – Updated: 2026-09-30 20:38
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Uncontrolled Resource Consumption
Summary
A resource exhaustion vulnerability in Kiteworks Email Protection Gateway allowed an unauthenticated remote attacker to repeatedly trigger a comparatively expensive server-side operation, causing a partial denial of service.
Severity
5.3 (Medium)
CWE
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.1
(custom)
Unaffected: 9.5.1 |
Date Public
2026-09-30 00:00
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"product": "Email Protection Gateway",
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}
]
}
],
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"metrics": [
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"baseScore": 5.3,
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CVE-2026-102143 (GCVE-0-2026-102143)
Vulnerability from nvd – Published: 2026-09-30 20:10 – Updated: 2026-09-30 20:10
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Unrestricted Upload of File with Dangerous Type
Summary
An unauthenticated attacker could cause a file with attacker-controlled content to be written to the appliance filesystem through an administrative upload handler that did not properly authenticate the request. This did not by itself result in code execution, which would require a separate vulnerability to place the file in an executable location.
Severity
7.5 (High)
CWE
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.1
(custom)
Unaffected: 9.5.1 |
Date Public
2026-09-30 00:00
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}
]
}
],
"credits": [
{
"lang": "en",
"value": "Supr4s, https://yeswehack.com/hunters/supr4s"
},
{
"lang": "en",
"value": "wlayzz, https://yeswehack.com/hunters/wlayzz"
},
{
"lang": "en",
"value": "Icare, https://yeswehack.com/hunters/icare"
},
{
"lang": "en",
"value": "truff, https://yeswehack.com/hunters/truff"
}
],
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}
],
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"attackVector": "NETWORK",
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"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
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"scope": "UNCHANGED",
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CVE-2026-102139 (GCVE-0-2026-102139)
Vulnerability from nvd – Published: 2026-09-30 20:11 – Updated: 2026-09-30 20:11
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Incorrect Authorization
Summary
An authorization check in the large file exchange feature of Kiteworks Email Protection Gateway did not correctly establish that the requesting user was a party to the package being requested. An authenticated user of that optional feature could read the subject, message body, and attachments of packages they neither sent nor received.
Severity
6.5 (Medium)
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.1
(custom)
Unaffected: 9.5.1 |
Date Public
2026-09-30 00:00
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"product": "Email Protection Gateway",
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"status": "affected",
"version": "0",
"versionType": "custom"
},
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}
]
}
],
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],
"metrics": [
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"attackVector": "NETWORK",
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CVE-2026-102135 (GCVE-0-2026-102135)
Vulnerability from nvd – Published: 2026-09-30 20:12 – Updated: 2026-09-30 20:12
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Deserialization of Untrusted Data
Summary
On a Kiteworks Email Protection Gateway cluster with database replication enabled, a party trusted by the cluster could submit a crafted serialized object that was deserialized without sufficient validation, potentially allowing code execution as the gateway service account. Replication is disabled by default, and exploitation requires control of a trusted cluster peer or administrative access to the appliance.
Severity
6.6 (Medium)
CWE
- CWE-502 - Deserialization of Untrusted Data
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.1
(custom)
Unaffected: 9.5.1 |
Date Public
2026-09-30 00:00
{
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"cna": {
"affected": [
{
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"product": "Email Protection Gateway",
"vendor": "Kiteworks",
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"status": "affected",
"version": "0",
"versionType": "custom"
},
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}
]
}
],
"credits": [
{
"lang": "en",
"value": "Icare, https://yeswehack.com/hunters/icare"
},
{
"lang": "en",
"value": "wlayzz, https://yeswehack.com/hunters/wlayzz"
},
{
"lang": "en",
"value": "truff, https://yeswehack.com/hunters/truff"
}
],
"datePublic": "2026-09-30T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "On a Kiteworks Email Protection Gateway cluster with database replication enabled, a party trusted by the cluster could submit a crafted serialized object that was deserialized without sufficient validation, potentially allowing code execution as the gateway service account. Replication is disabled by default, and exploitation requires control of a trusted cluster peer or administrative access to the appliance."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.6,
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
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"scope": "UNCHANGED",
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CVE-2026-102131 (GCVE-0-2026-102131)
Vulnerability from nvd – Published: 2026-09-30 20:13 – Updated: 2026-09-30 20:13
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Improper Handling of Case Sensitivity
Summary
Kiteworks Email Protection Gateway rejected certain configuration settings, but its validation did not recognize every form in which they could be supplied. An authenticated administrator could potentially use an unrecognized form to have a file of their choosing written to the gateway and executed, resulting in code execution as the gateway service account.
Severity
7.2 (High)
CWE
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102130 (GCVE-0-2026-102130)
Vulnerability from nvd – Published: 2026-09-30 20:13 – Updated: 2026-09-30 20:13
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Remote Code Execution
Summary
Kiteworks Email Protection Gateway did not sufficiently validate the content of an uploaded backup, and allowed an administrator to influence how the application loaded it. An authenticated administrator could potentially use this to execute arbitrary code on the gateway as the underlying service account.
Severity
7.2 (High)
CWE
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.1
(custom)
Unaffected: 9.5.1 |
Date Public
2026-09-30 00:00
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CVE-2026-102128 (GCVE-0-2026-102128)
Vulnerability from nvd – Published: 2026-09-30 20:14 – Updated: 2026-09-30 20:14
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Improper Authentication
Summary
An identity-verification weakness in Kiteworks Email Protection Gateway allowed the gateway to act on the Kiteworks platform on behalf of a user it had not authenticated, and to provision a platform account for an identity it did not already know. A remote, unauthenticated sender could potentially exploit this to obtain control of a platform account.
Severity
7.5 (High)
CWE
- CWE-287 - Improper Authentication
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.1
(custom)
Unaffected: 9.5.1 |
Date Public
2026-09-30 00:00
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CVE-2026-102127 (GCVE-0-2026-102127)
Vulnerability from nvd – Published: 2026-09-30 20:14 – Updated: 2026-09-30 20:14
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Improper Restriction of XML External Entity Reference
Summary
An XML parser used by Kiteworks Email Protection Gateway did not restrict external entity references. Where an optional, non-default message-processing feature is enabled, a remote and unauthenticated sender could potentially use a crafted message to read files accessible to the gateway service account, including cryptographic key material and credentials, and have them sent to a destination they control.
Severity
CWE
- CWE-611 - Improper Restriction of XML External Entity Reference
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.1
(custom)
Unaffected: 9.5.1 |
Date Public
2026-09-30 00:00
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CVE-2026-102119 (GCVE-0-2026-102119)
Vulnerability from nvd – Published: 2026-09-30 20:18 – Updated: 2026-09-30 20:18
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Path Traversal
Summary
A path traversal weakness in an optional, non-default administrative feature allowed an authenticated administrator to move files to unintended locations outside the feature's designated directory. This could potentially be leveraged to execute arbitrary code on the underlying system.
Severity
7.2 (High)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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},
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},
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CVE-2026-102116 (GCVE-0-2026-102116)
Vulnerability from nvd – Published: 2026-09-30 20:19 – Updated: 2026-09-30 20:19
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Path Traversal
Summary
-A weakness could have allowed an authenticated Kiteworks Email Protection Gateway administrator to write a file outside its intended location and cause the application to execute it, potentially resulting in remote code execution as the underlying service account.
Severity
7.2 (High)
CWE
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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}
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CVE-2026-102108 (GCVE-0-2026-102108)
Vulnerability from nvd – Published: 2026-09-30 20:24 – Updated: 2026-09-30 20:24
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway deserialization of untrusted data
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.
Severity
7.2 (High)
CWE
- CWE-502 - Deserialization of Untrusted Data
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102106 (GCVE-0-2026-102106)
Vulnerability from nvd – Published: 2026-09-30 20:24 – Updated: 2026-09-30 20:24
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway improper authentication
Summary
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.
Severity
9.1 (Critical)
CWE
- CWE-287 - Improper Authentication
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102105 (GCVE-0-2026-102105)
Vulnerability from nvd – Published: 2026-09-30 20:25 – Updated: 2026-09-30 20:25
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway server-side request forgery
Summary
Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Server-Side Request Forgery (SSRF). A server-side request forgery (SSRF) weakness in Kiteworks Email Protection Gateway could allow a remote, unauthenticated attacker to induce the gateway to issue crafted requests to internal or otherwise unintended network destinations. The requests are triggered while the gateway renders message content that references external resources. Depending on the services reachable from the gateway, this could disclose sensitive internal information or trigger unintended actions on internal systems.
Severity
9.1 (Critical)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102104 (GCVE-0-2026-102104)
Vulnerability from nvd – Published: 2026-09-30 20:17 – Updated: 2026-09-30 20:17
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway server-side request forgery
Summary
Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Server-Side Request Forgery (SSRF). A server-side request forgery (SSRF) weakness in Kiteworks Email Protection Gateway could allow a remote, unauthenticated attacker to induce the gateway to issue crafted requests to internal or otherwise unintended network destinations. The requests are triggered while the gateway performs an online certificate status check for an inbound message. Depending on the services reachable from the gateway, this could disclose sensitive internal information or disrupt gateway operation.
Severity
9.1 (Critical)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102103 (GCVE-0-2026-102103)
Vulnerability from nvd – Published: 2026-09-30 20:16 – Updated: 2026-09-30 20:16
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway server-side request forgery
Summary
Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Server-Side Request Forgery (SSRF). A server-side request forgery (SSRF) weakness in Kiteworks Email Protection Gateway could allow a remote, unauthenticated attacker to induce the gateway to issue crafted requests to internal or otherwise unintended network destinations. The requests are triggered while the gateway retrieves a certificate revocation list in an inbound message. Depending on the services reachable from the gateway, this could disclose sensitive internal information or disrupt gateway operation.
Severity
9.1 (Critical)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102102 (GCVE-0-2026-102102)
Vulnerability from nvd – Published: 2026-09-30 20:12 – Updated: 2026-09-30 20:12
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway server-side request forgery
Summary
Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Server-Side Request Forgery (SSRF). A server-side request forgery (SSRF) weakness in Kiteworks Email Protection Gateway could allow a remote, unauthenticated attacker to induce the gateway to issue crafted requests to internal or otherwise unintended network destinations. The requests are triggered while the gateway retrieves an issuer certificate in an inbound message. Depending on the services reachable from the gateway, this could disclose sensitive internal information or disrupt gateway operation.
Severity
9.1 (Critical)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102097 (GCVE-0-2026-102097)
Vulnerability from nvd – Published: 2026-09-30 20:07 – Updated: 2026-09-30 20:07
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway remote code execution
Summary
Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Remote Code Execution. Kiteworks Email Protection Gateway allowed an authenticated administrator to import configuration whose contents were not sufficiently validated before being processed. A crafted submission could potentially allow arbitrary commands to be executed on the affected gateway.
Severity
7.2 (High)
CWE
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102095 (GCVE-0-2026-102095)
Vulnerability from nvd – Published: 2026-09-30 20:07 – Updated: 2026-09-30 20:07
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway server-side request forgery
Summary
Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Server-Side Request Forgery. Kiteworks Email Protection Gateway performed server-side fetches of URLs contained in the message content it processed, without adequately restricting the fetch destination. A remote, unauthenticated sender could craft a message that caused the gateway to issue requests to internal services and cloud instance metadata endpoints and return the responses, potentially disclosing sensitive internal data and, depending on the internal service reached, affecting its state.
Severity
9.1 (Critical)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102094 (GCVE-0-2026-102094)
Vulnerability from nvd – Published: 2026-09-30 20:07 – Updated: 2026-09-30 20:07
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway unsafe reflection
Summary
Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Unsafe Reflection and does not sufficiently restrict the code that the mail-processing pipeline could load from an imported rule configuration. An authenticated administrator with mail-rule configuration privileges could cause the gateway to load and execute code beyond the approved set of mail-processing components, potentially in the context of the mail-gateway service account.
Severity
7.2 (High)
CWE
- CWE-470 - Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102089 (GCVE-0-2026-102089)
Vulnerability from nvd – Published: 2026-09-30 20:05 – Updated: 2026-09-30 20:05
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway path traversal
Summary
Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to a path traversal weakness in an administrative import function allowed an authenticated administrator to write files to arbitrary locations on the server. This could potentially be leveraged to execute arbitrary code on the underlying system.
Severity
7.2 (High)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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],
"credits": [
{
"lang": "en",
"value": "Supr4s, https://yeswehack.com/hunters/Supr4s"
},
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"lang": "en",
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},
{
"lang": "en",
"value": "Icare, https://yeswehack.com/hunters/Icare"
},
{
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CVE-2026-102105 (GCVE-0-2026-102105)
Vulnerability from cvelistv5 – Published: 2026-09-30 20:25 – Updated: 2026-09-30 20:25
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway server-side request forgery
Summary
Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Server-Side Request Forgery (SSRF). A server-side request forgery (SSRF) weakness in Kiteworks Email Protection Gateway could allow a remote, unauthenticated attacker to induce the gateway to issue crafted requests to internal or otherwise unintended network destinations. The requests are triggered while the gateway renders message content that references external resources. Depending on the services reachable from the gateway, this could disclose sensitive internal information or trigger unintended actions on internal systems.
Severity
9.1 (Critical)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102106 (GCVE-0-2026-102106)
Vulnerability from cvelistv5 – Published: 2026-09-30 20:24 – Updated: 2026-09-30 20:24
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway improper authentication
Summary
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.
Severity
9.1 (Critical)
CWE
- CWE-287 - Improper Authentication
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102108 (GCVE-0-2026-102108)
Vulnerability from cvelistv5 – Published: 2026-09-30 20:24 – Updated: 2026-09-30 20:24
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway deserialization of untrusted data
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.
Severity
7.2 (High)
CWE
- CWE-502 - Deserialization of Untrusted Data
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102116 (GCVE-0-2026-102116)
Vulnerability from cvelistv5 – Published: 2026-09-30 20:19 – Updated: 2026-09-30 20:19
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Path Traversal
Summary
-A weakness could have allowed an authenticated Kiteworks Email Protection Gateway administrator to write a file outside its intended location and cause the application to execute it, potentially resulting in remote code execution as the underlying service account.
Severity
7.2 (High)
CWE
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102119 (GCVE-0-2026-102119)
Vulnerability from cvelistv5 – Published: 2026-09-30 20:18 – Updated: 2026-09-30 20:18
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Path Traversal
Summary
A path traversal weakness in an optional, non-default administrative feature allowed an authenticated administrator to move files to unintended locations outside the feature's designated directory. This could potentially be leveraged to execute arbitrary code on the underlying system.
Severity
7.2 (High)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102104 (GCVE-0-2026-102104)
Vulnerability from cvelistv5 – Published: 2026-09-30 20:17 – Updated: 2026-09-30 20:17
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway server-side request forgery
Summary
Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Server-Side Request Forgery (SSRF). A server-side request forgery (SSRF) weakness in Kiteworks Email Protection Gateway could allow a remote, unauthenticated attacker to induce the gateway to issue crafted requests to internal or otherwise unintended network destinations. The requests are triggered while the gateway performs an online certificate status check for an inbound message. Depending on the services reachable from the gateway, this could disclose sensitive internal information or disrupt gateway operation.
Severity
9.1 (Critical)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102103 (GCVE-0-2026-102103)
Vulnerability from cvelistv5 – Published: 2026-09-30 20:16 – Updated: 2026-09-30 20:16
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway server-side request forgery
Summary
Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Server-Side Request Forgery (SSRF). A server-side request forgery (SSRF) weakness in Kiteworks Email Protection Gateway could allow a remote, unauthenticated attacker to induce the gateway to issue crafted requests to internal or otherwise unintended network destinations. The requests are triggered while the gateway retrieves a certificate revocation list in an inbound message. Depending on the services reachable from the gateway, this could disclose sensitive internal information or disrupt gateway operation.
Severity
9.1 (Critical)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.0
(custom)
Unaffected: 9.5.0 |
Date Public
2026-09-30 00:00
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CVE-2026-102127 (GCVE-0-2026-102127)
Vulnerability from cvelistv5 – Published: 2026-09-30 20:14 – Updated: 2026-09-30 20:14
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Improper Restriction of XML External Entity Reference
Summary
An XML parser used by Kiteworks Email Protection Gateway did not restrict external entity references. Where an optional, non-default message-processing feature is enabled, a remote and unauthenticated sender could potentially use a crafted message to read files accessible to the gateway service account, including cryptographic key material and credentials, and have them sent to a destination they control.
Severity
CWE
- CWE-611 - Improper Restriction of XML External Entity Reference
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.1
(custom)
Unaffected: 9.5.1 |
Date Public
2026-09-30 00:00
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