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    3 vulnerabilities by EPG, Inc.

    CVE-2026-41872 (GCVE-0-2026-41872)

    Vulnerability from nvd – Published: 2026-05-12 05:21 – Updated: 2026-05-12 13:17
    VLAI
    Summary
    "Kura Sushi Official App" provided by EPG, Inc. is vulnerable to improper certificate validation. A man-in-the-middle attack may allow eavesdropping on, or altering, the communication on push notifications between the affected application and the relevant server.
    Severity
    7.4 (High)
    CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
    9.1 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-295 - Improper certificate validation
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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    CVE-2026-41872 (GCVE-0-2026-41872)

    Vulnerability from cvelistv5 – Published: 2026-05-12 05:21 – Updated: 2026-05-12 13:17
    VLAI
    Summary
    "Kura Sushi Official App" provided by EPG, Inc. is vulnerable to improper certificate validation. A man-in-the-middle attack may allow eavesdropping on, or altering, the communication on push notifications between the affected application and the relevant server.
    Severity
    7.4 (High)
    CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
    9.1 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-295 - Improper certificate validation
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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    JVNDB-2026-000067

    Vulnerability from jvndb - Published: 2026-05-11 18:20 - Updated:2026-05-11 18:20
    Severity
    7.4 (High) - cvssV3_0 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
    Summary
    "Kura Sushi Official App" vulnerable to improper certificate validation
    Details
    "Kura Sushi Official App" provided by EPG, Inc. contains the following vulnerability.
    • Improper certificate validation on push notifications (CWE-295) - CVE-2026-41872
      • This analysis assumes a man-in-the-middle attack being conducted with a malicious wireless LAN access point
    Tsuyoshi Ogawa of SAK University SIE Co., Ltd. reported this vulnerability to IPA.JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
    References
    Impacted products
    Show details on JVN DB website
    To clipboard 

    {
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000067.html",
  "dc:date": "2026-05-11T18:20+09:00",
  "dcterms:issued": "2026-05-11T18:20+09:00",
  "dcterms:modified": "2026-05-11T18:20+09:00",
  "description": "\"Kura Sushi Official App\" provided by EPG, Inc. contains the following vulnerability.\u003ca href=\u0027https://cwe.mitre.org/data/definitions/295.html\u0027 target=\u0027_blank\u0027\u003e\u003c/a\u003e\u003cul\u003e\u003cli\u003eImproper certificate validation on push notifications (CWE-295) - CVE-2026-41872\u003c/li\u003e\u003cul\u003e\u003cli\u003eThis analysis assumes a man-in-the-middle attack being conducted with a malicious wireless LAN access point\u003c/li\u003e\u003c/ul\u003e\u003c/ul\u003eTsuyoshi Ogawa of SAK University SIE Co., Ltd. reported this vulnerability to IPA.JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000067.html",
  "sec:cpe": [
    {
      "#text": "cpe:/a:misc:epg_kura_sushi_official_app_for_android",
      "@product": "Kura Sushi Official App for Android",
      "@vendor": "EPG, Inc.",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/a:misc:epg_kura_sushi_official_app_for_ios",
      "@product": "Kura Sushi Official App for iOS",
      "@vendor": "EPG, Inc.",
      "@version": "2.2"
    }
  ],
  "sec:cvss": {
    "@score": "7.4",
    "@severity": "High",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2026-000067",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN38632731/index.html",
      "@id": "JVN#38632731",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-41872",
      "@id": "CVE-2026-41872",
      "@source": "CVE"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "\"Kura Sushi Official App\" vulnerable to improper certificate validation"
}