CVE-2026-102146 (GCVE-0-2026-102146)

Vulnerability from cvelistv5 – Published: 2026-09-30 20:08 – Updated: 2026-09-30 20:08
VLAI
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.
CWE
  • CWE-73 - External Control of File Name or Path
Impacted products
Vendor Product Version CPE status
Kiteworks Email Protection Gateway Affected: 0 , < 9.5.1 (custom)
Unaffected: 9.5.1
guessed Create a notification for this product.
Date Public
2026-09-30 00:00
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Email Protection Gateway",
          "vendor": "Kiteworks",
          "versions": [
            {
              "lessThan": "9.5.1",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "9.5.1"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Supr4s, https://yeswehack.com/hunters/supr4s"
        }
      ],
      "datePublic": "2026-09-30T00:00:00.000Z",
      "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\u0027s intended privileges and could be used to alter application files and configuration or to disrupt the availability of the service."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-73",
              "description": "CWE-73 External Control of File Name or Path",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-30T20:08:51.629Z",
        "orgId": "9119a7d8-5eab-497f-8521-727c672e3725",
        "shortName": "cisa-cg"
      },
      "references": [
        {
          "name": "url",
          "url": "https://github.com/kiteworks/security-advisories/security/advisories/GHSA-5pgq-v8g2-rg2f"
        },
        {
          "name": "url",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json"
        }
      ],
      "title": "Kiteworks Email Protection Gateway Arbitrary File Write through Server-Side Template Injection",
      "x_generator": {
        "engine": "VINCE-NT 1.15.0+build.145"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9119a7d8-5eab-497f-8521-727c672e3725",
    "assignerShortName": "cisa-cg",
    "cveId": "CVE-2026-102146",
    "datePublished": "2026-09-30T20:08:51.629Z",
    "dateReserved": "2026-09-28T17:39:13.564Z",
    "dateUpdated": "2026-09-30T20:08:51.629Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unknown",
                "product": "Email Protection Gateway",
                "vendor": "Kiteworks",
                "versions": [
                  {
                    "lessThan": "9.5.1",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  },
                  {
                    "status": "unaffected",
                    "version": "9.5.1"
                  }
                ]
              }
            ],
            "source": "9119a7d8-5eab-497f-8521-727c672e3725"
          }
        ],
        "cveTags": [],
        "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\u0027s intended privileges and could be used to alter application files and configuration or to disrupt the availability of the service."
          }
        ],
        "id": "CVE-2026-102146",
        "lastModified": "2026-10-01T02:17:43.350",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 6.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "HIGH",
                "privilegesRequired": "HIGH",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.2,
              "impactScore": 5.2,
              "source": "9119a7d8-5eab-497f-8521-727c672e3725",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-09-30T21:17:03.510",
        "references": [
          {
            "source": "9119a7d8-5eab-497f-8521-727c672e3725",
            "url": "https://github.com/kiteworks/security-advisories/security/advisories/GHSA-5pgq-v8g2-rg2f"
          },
          {
            "source": "9119a7d8-5eab-497f-8521-727c672e3725",
            "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json"
          }
        ],
        "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-73"
              }
            ],
            "source": "9119a7d8-5eab-497f-8521-727c672e3725",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…