{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-74864",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-30T12:50:42.911688Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-30T12:50:52.363Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "sogo_yhn",
          "repo": "https://github.com/YunoHost-Apps/sogo_ynh",
          "vendor": "YunoHost-Apps",
          "versions": [
            {
              "lessThan": "5.8.0~ynh9",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Przemys\u0142aw Knycz WeKrwi.IT  https://github.com/djrzulf"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003esogo_yhn configures SOGo with a parameter that forces the request with HTTP header \"x-webobjects-remote-user\" to be treated as sent by a verified user without performing password validation.\u0026nbsp;Since Nginx does not strip this header, any client can supply it arbitrarily and gain access as any user, including a privileged user, without providing a password.\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eThis issue was fixed in version\u0026nbsp;5.8.0~ynh9.\u003c/div\u003e"
            }
          ],
          "value": "sogo_yhn configures SOGo with a parameter that forces the request with HTTP header \"x-webobjects-remote-user\" to be treated as sent by a verified user without performing password validation.\u00a0Since Nginx does not strip this header, any client can supply it arbitrarily and gain access as any user, including a privileged user, without providing a password.\n\n\n\n\nThis issue was fixed in version\u00a05.8.0~ynh9."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "CWE-639 Authorization bypass through User-Controlled key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-30T12:02:29.340Z",
        "orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
        "shortName": "CERT-PL"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://cert.pl/en/posts/2026/09/CVE-2026-74864"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://forum.yunohost.org/t/sogo-critical-vulnerability-fixed-in-5-8-0-ynh9/42699"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "tags": [
        "x_open-source"
      ],
      "title": "Authentication Bypass in sogo_yhn",
      "x_generator": {
        "engine": "Vulnogram 1.0.3"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
    "assignerShortName": "CERT-PL",
    "cveId": "CVE-2026-74864",
    "datePublished": "2026-09-30T12:02:29.340Z",
    "dateReserved": "2026-08-17T10:19:51.723Z",
    "dateUpdated": "2026-09-30T12:50:52.363Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6\", \"shortName\": \"CERT-PL\", \"dateUpdated\": \"2026-09-30T12:02:29.340Z\"}, \"title\": \"Authentication Bypass in sogo_yhn\", \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"cweId\": \"CWE-639\", \"description\": \"CWE-639 Authorization bypass through User-Controlled key\", \"type\": \"CWE\"}]}], \"affected\": [{\"vendor\": \"YunoHost-Apps\", \"product\": \"sogo_yhn\", \"repo\": \"https://github.com/YunoHost-Apps/sogo_ynh\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"5.8.0~ynh9\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"sogo_yhn configures SOGo with a parameter that forces the request with HTTP header \\\"x-webobjects-remote-user\\\" to be treated as sent by a verified user without performing password validation.\\u00a0Since Nginx does not strip this header, any client can supply it arbitrarily and gain access as any user, including a privileged user, without providing a password.\\n\\n\\n\\n\\nThis issue was fixed in version\\u00a05.8.0~ynh9.\", \"supportingMedia\": [{\"type\": \"text/html\", \"base64\": false, \"value\": \"\u003cdiv\u003esogo_yhn configures SOGo with a parameter that forces the request with HTTP header \\\"x-webobjects-remote-user\\\" to be treated as sent by a verified user without performing password validation.\u0026nbsp;Since Nginx does not strip this header, any client can supply it arbitrarily and gain access as any user, including a privileged user, without providing a password.\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003eThis issue was fixed in version\u0026nbsp;5.8.0~ynh9.\u003c/div\u003e\"}]}], \"tags\": [\"x_open-source\"], \"references\": [{\"url\": \"https://cert.pl/en/posts/2026/09/CVE-2026-74864\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://forum.yunohost.org/t/sogo-critical-vulnerability-fixed-in-5-8-0-ynh9/42699\", \"tags\": [\"issue-tracking\"]}], \"metrics\": [{\"format\": \"CVSS\", \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}], \"cvssV4_0\": {\"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subIntegrityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"exploitMaturity\": \"NOT_DEFINED\", \"Safety\": \"NOT_DEFINED\", \"Automatable\": \"NOT_DEFINED\", \"Recovery\": \"NOT_DEFINED\", \"valueDensity\": \"NOT_DEFINED\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"version\": \"4.0\", \"baseSeverity\": \"CRITICAL\", \"baseScore\": 9.3, \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N\"}}], \"credits\": [{\"lang\": \"en\", \"value\": \"Przemys\\u0142aw Knycz WeKrwi.IT  https://github.com/djrzulf\", \"type\": \"finder\"}], \"source\": {\"discovery\": \"EXTERNAL\"}, \"x_generator\": {\"engine\": \"Vulnogram 1.0.3\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-74864\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-09-30T12:50:42.911688Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-09-30T12:50:49.501Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-74864\", \"assignerOrgId\": \"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"CERT-PL\", \"dateReserved\": \"2026-08-17T10:19:51.723Z\", \"datePublished\": \"2026-09-30T12:02:29.340Z\", \"dateUpdated\": \"2026-09-30T12:50:52.363Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}