Vulnerability-Lookup

CVE-2026-106931 (GCVE-0-2026-106931)

Vulnerability from cvelistv5 – Published: 2026-10-14 04:45 – Updated: 2026-10-14 09:09

Summary

SiteGuard Server Edition contains an OS command injection vulnerability, which may allow an attacker to execute arbitrary OS commands with root or SYSTEM privileges on the system running the affected product.

Severity

7.8 (High)


                        
                          CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.5 (High)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CWE

CWE-78 - Improper neutralization of special elements used in an OS command ('OS Command Injection')

Assigner

jpcert CNA under the jpcert root

CNA scorecard C 64/100 over 190 records in the last 180 days details

References

2 references

URL	Tags
https://www.eg-secure.co.jp/siteguard/news/alert-…
https://jvn.jp/en/jp/JVN88474777/

Impacted products

5 products

Vendor	Product	Version	CPE status
EG Secure Solutions Inc.	SiteGuard Server Edition for Apache httpd	Affected: Ver2.20 , < Ver8.00 Update 5 (semver)	guessed
EG Secure Solutions Inc.	SiteGuard Server Edition for Nginx	Affected: Ver2.20 , < Ver8.00 Update 5 (semver)	guessed
EG Secure Solutions Inc.	SiteGuard Server Edition for IIS	Affected: Ver2.20 , < Ver8.00 Update 5 (semver)	guessed
EG Secure Solutions Inc.	SiteGuard Server Edition for Apache httpd on FreeBSD	Affected: Ver2.20 , < Ver7.00 Update 6 (semver)	guessed
EG Secure Solutions Inc.	SiteGuard Server Edition for Nginx on FreeBSD	Affected: Ver2.20 , < Ver7.00 Update 6 (semver)	guessed

Show details on NVD website

JSON

To clipboard

{
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          "product": "SiteGuard Server Edition for Apache httpd",
          "vendor": "EG Secure Solutions Inc.",
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    "dateReserved": "2026-10-07T04:50:26.138Z",
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                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
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                "privilegesRequired": "LOW",
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}

FKIE_CVE-2026-106931

Vulnerability from fkie_nvd - Published: 2026-10-14 05:16 - Updated: 2026-10-14 10:17

Severity

7.8 (High) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	vultures@jpcert.or.jp	https://jvn.jp/en/jp/JVN88474777/
	vultures@jpcert.or.jp	https://www.eg-secure.co.jp/siteguard/news/alert-202610-1

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "SiteGuard Server Edition for Apache httpd",
          "vendor": "EG Secure Solutions Inc.",
          "versions": [
            {
              "lessThan": "Ver8.00 Update 5",
              "status": "affected",
              "version": "Ver2.20",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "SiteGuard Server Edition for Nginx",
          "vendor": "EG Secure Solutions Inc.",
          "versions": [
            {
              "lessThan": "Ver8.00 Update 5",
              "status": "affected",
              "version": "Ver2.20",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "SiteGuard Server Edition for IIS",
          "vendor": "EG Secure Solutions Inc.",
          "versions": [
            {
              "changes": [
                {
                  "at": "Ver3.10",
                  "status": "unaffected"
                },
                {
                  "at": "Ver4.00 Update 5",
                  "status": "affected"
                }
              ],
              "lessThan": "Ver8.00 Update 5",
              "status": "affected",
              "version": "Ver2.20",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "SiteGuard Server Edition for Apache httpd on FreeBSD",
          "vendor": "EG Secure Solutions Inc.",
          "versions": [
            {
              "lessThan": "Ver7.00 Update 6",
              "status": "affected",
              "version": "Ver2.20",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "SiteGuard Server Edition for Nginx on FreeBSD",
          "vendor": "EG Secure Solutions Inc.",
          "versions": [
            {
              "lessThan": "Ver7.00 Update 6",
              "status": "affected",
              "version": "Ver2.20",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "vultures@jpcert.or.jp"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "SiteGuard Server Edition contains an OS command injection vulnerability, which may allow an attacker to execute arbitrary OS commands with root or SYSTEM privileges on the system running the affected product."
    }
  ],
  "id": "CVE-2026-106931",
  "lastModified": "2026-10-14T10:17:51.403",
  "metrics": {
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
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          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
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        },
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        "source": "vultures@jpcert.or.jp",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
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          "exploitMaturity": "NOT_DEFINED",
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          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
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  },
  "published": "2026-10-14T05:16:42.633",
  "references": [
    {
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      "url": "https://jvn.jp/en/jp/JVN88474777/"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "url": "https://www.eg-secure.co.jp/siteguard/news/alert-202610-1"
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "vulnStatus": "Received",
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    {
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        {
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      "source": "vultures@jpcert.or.jp",
      "type": "Secondary"
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  ]
}

GHSA-RHMJ-5MP2-RQ7C

Vulnerability from github – Published: 2026-10-14 06:31 – Updated: 2026-10-14 06:31

Details

Severity

7.8 (High)


                  
                    CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.5 (High)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-106931"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-14T05:16:42Z",
    "severity": "HIGH"
  },
  "details": "SiteGuard Server Edition contains an OS command injection vulnerability, which may allow an attacker to execute arbitrary OS commands with root or SYSTEM privileges on the system running the affected product.",
  "id": "GHSA-rhmj-5mp2-rq7c",
  "modified": "2026-10-14T06:31:14Z",
  "published": "2026-10-14T06:31:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-106931"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/jp/JVN88474777"
    },
    {
      "type": "WEB",
      "url": "https://www.eg-secure.co.jp/siteguard/news/alert-202610-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

JVNDB-2026-000148

Vulnerability from jvndb - Published: 2026-10-14 08:37 - Updated:2026-10-14 08:37

Severity

7.8 (High) - cvssV3_0 - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

SiteGuard Server Edition vulnerable to OS command injection

Details

SiteGuard Server Edition provided by EG Secure Solutions Inc. is a host-based Web Application Firewall (WAF) designed to be integrated into a web server. The statistics feature of SiteGuard Server Edition contains the following vulnerability:

OS command injection (CWE-78) - CVE-2026-106931

Note that the vulnerability has been confirmed to be exploited in the wild. The developer reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

References

Type

URL

	JVN	https://jvn.jp/en/jp/JVN88474777/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-106931
	JPCERT AT	https://www.jpcert.or.jp/at/2026/at260032.html
	OS Command Injection(CWE-78)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

EG Secure Solutions Inc.

SiteGuard Server Edition

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000148.html",
  "dc:date": "2026-10-14T17:37+09:00",
  "dcterms:issued": "2026-10-14T17:37+09:00",
  "dcterms:modified": "2026-10-14T17:37+09:00",
  "description": "SiteGuard Server Edition provided by EG Secure Solutions Inc. is a host-based Web Application Firewall (WAF) designed to be integrated into a web server. The statistics feature of SiteGuard Server Edition contains the following vulnerability:\u003ca href=\u0027https://cwe.mitre.org/data/definitions/78.html\u0027 target=\u0027_blank\u0027\u003e\u003c/a\u003e\r\n\u003cul\u003e\u003cli\u003eOS command injection (CWE-78) - CVE-2026-106931\u003c/li\u003e\u003c/ul\u003eNote that the vulnerability has been confirmed to be exploited in the wild.\r\n\r\nThe developer reported this vulnerability to IPA.\r\nJPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000148.html",
  "sec:cpe": {
    "#text": "cpe:/a:misc:siteguard_server_edition",
    "@product": "SiteGuard Server Edition",
    "@vendor": "EG Secure Solutions Inc.",
    "@version": "2.2"
  },
  "sec:cvss": {
    "@score": "7.8",
    "@severity": "High",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2026-000148",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN88474777/index.html",
      "@id": "JVN#88474777",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-106931",
      "@id": "CVE-2026-106931",
      "@source": "CVE"
    },
    {
      "#text": "https://www.jpcert.or.jp/at/2026/at260032.html",
      "@id": "JPCERT-AT-2026-0032",
      "@source": "JPCERT AT"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-78",
      "@title": "OS Command Injection(CWE-78)"
    }
  ],
  "title": "SiteGuard Server Edition vulnerable to OS command injection"
}

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.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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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.

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CVE-2026-106931 (GCVE-0-2026-106931)

FKIE_CVE-2026-106931

GHSA-RHMJ-5MP2-RQ7C

JVNDB-2026-000148

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