{
  "containers": {
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      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-17347",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-31T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-01T03:56:12.755Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "Master Password Hook"
          ],
          "product": "pgAdmin 4",
          "programFiles": [
            "https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/utils/master_password.py",
            "https://github.com/pgadmin-org/pgadmin4/blob/master/web/config.py"
          ],
          "repo": "https://github.com/pgadmin-org/pgadmin4",
          "vendor": "pgadmin.org",
          "versions": [
            {
              "lessThan": "9.17",
              "status": "affected",
              "version": "7.2",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Thiago Pereira (@B1gN0Se)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Dave Page \u003cpage@pgadmin.org\u003e"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Ashesh Vashi \u003cashesh.vashi@enterprisedb.com\u003e"
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "Ashesh Vashi \u003cashesh.vashi@enterprisedb.com\u003e"
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "Kundan Sable \u003ckundan.sable@enterprisedb.com\u003e"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The MASTER_PASSWORD_HOOK setting, introduced in pgAdmin 4 7.2, lets an administrator configure an external command that returns a per-user encryption key, with %u in the configured string replaced by the current user\u0027s name. The previous implementation substituted the username directly into the command string and executed the result with subprocess.Popen(..., shell=True). Because the username can originate from an external authentication source (OAuth/OIDC claims, Kerberos, webserver auth) rather than a value pgAdmin fully controls, a username containing shell metacharacters (\u0027;\u0027, \u0027$()\u0027, backticks, pipes, \u0027\u0026\u0026\u0027, newlines) allowed an authenticated user to execute arbitrary commands as the pgAdmin service account in any deployment where the configured hook string uses %u.\n\nFix tokenises the trusted, administrator-configured hook string into an argument vector first (using shlex in POSIX-quoting mode, with backslash-escaping disabled so Windows-style paths are not mis-parsed), substitutes the untrusted username into the individual argv elements, and executes with shell=False. The username is therefore always confined to a single argv element; any shell metacharacters it contains are inert. Administrators whose MASTER_PASSWORD_HOOK previously relied on shell features (pipes, redirection, environment-variable expansion, globbing) within the hook string itself must move that logic into the invoked script, since it is no longer interpreted by a shell.\n\nThis issue affects pgAdmin 4: from 7.2 before 9.17."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
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            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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              "lang": "en",
              "value": "Threat model (per reporter\u0027s submitted rating): an authenticated pgAdmin user whose username is sourced from an external identity provider (OAuth/OIDC, Kerberos, or webserver auth passed through to pgAdmin) in a deployment where MASTER_PASSWORD_HOOK\u0027s configured string contains %u. Attack Complexity is High because exploitation depends on this non-default configuration (hook enabled with %u, combined with an external-auth username source under attacker influence) rather than being reachable in a default deployment. Scope is Unchanged: the resulting command execution runs as the pgAdmin service account, which is the same security authority the web application process itself already runs under -- it is a consequence of pgAdmin\u0027s own process, not a boundary crossing into an unrelated authority. Confidentiality/Integrity/Availability are High because arbitrary command execution as that account can read, modify, or destroy anything the account can reach."
            }
          ]
        },
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "Same reasoning as the CVSS 3.1 entry: authenticated low-privilege user with an externally-sourced username triggers arbitrary OS command execution as the pgAdmin service account, contingent on the non-default MASTER_PASSWORD_HOOK/%u configuration (AT:N here refers to no additional authentication target beyond the login itself; the configuration dependency is captured via AC:H in the 3.1 vector and is implicit in this scenario). VC:H/VI:H/VA:H for the service account\u0027s own reach; SC:N/SI:N/SA:N since that reach is the application\u0027s own process authority, not a distinct subsequent system."
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "CWE-78 Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            },
            {
              "cweId": "CWE-88",
              "description": "CWE-88 Improper Neutralization of Argument Delimiters in a Command (\u0027Argument Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-31T15:59:16.588Z",
        "orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
        "shortName": "PostgreSQL"
      },
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        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/pgadmin-org/pgadmin4/issues/10191"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/pgadmin-org/pgadmin4/commit/ea7e798aac27174d2bacee1d6e136bed76a95e23"
        },
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          "tags": [
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          ],
          "url": "https://github.com/pgadmin-org/pgadmin4/commit/e7a85767314e7b0fe0b35fe80b9c1af38f48dff6"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "pgAdmin 4: OS command injection in MASTER_PASSWORD_HOOK via untrusted username substitution"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
    "assignerShortName": "PostgreSQL",
    "cveId": "CVE-2026-17347",
    "datePublished": "2026-07-31T15:59:16.588Z",
    "dateReserved": "2026-07-25T02:52:54.844Z",
    "dateUpdated": "2026-08-01T03:56:12.755Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-17347\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-31T17:23:19.113335Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-31T17:23:34.759Z\"}}], \"cna\": {\"title\": \"pgAdmin 4: OS command injection in MASTER_PASSWORD_HOOK via untrusted username substitution\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Thiago Pereira (@B1gN0Se)\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"Dave Page \u003cpage@pgadmin.org\u003e\"}, {\"lang\": \"en\", \"type\": \"remediation developer\", \"value\": \"Ashesh Vashi \u003cashesh.vashi@enterprisedb.com\u003e\"}, {\"lang\": \"en\", \"type\": \"remediation reviewer\", \"value\": \"Ashesh Vashi \u003cashesh.vashi@enterprisedb.com\u003e\"}, {\"lang\": \"en\", \"type\": \"remediation reviewer\", \"value\": \"Kundan Sable \u003ckundan.sable@enterprisedb.com\u003e\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"Threat model (per reporter\u0027s submitted rating): an authenticated pgAdmin user whose username is sourced from an external identity provider (OAuth/OIDC, Kerberos, or webserver auth passed through to pgAdmin) in a deployment where MASTER_PASSWORD_HOOK\u0027s configured string contains %u. Attack Complexity is High because exploitation depends on this non-default configuration (hook enabled with %u, combined with an external-auth username source under attacker influence) rather than being reachable in a default deployment. Scope is Unchanged: the resulting command execution runs as the pgAdmin service account, which is the same security authority the web application process itself already runs under -- it is a consequence of pgAdmin\u0027s own process, not a boundary crossing into an unrelated authority. Confidentiality/Integrity/Availability are High because arbitrary command execution as that account can read, modify, or destroy anything the account can reach.\"}]}, {\"format\": \"CVSS\", \"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 7.7, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"Same reasoning as the CVSS 3.1 entry: authenticated low-privilege user with an externally-sourced username triggers arbitrary OS command execution as the pgAdmin service account, contingent on the non-default MASTER_PASSWORD_HOOK/%u configuration (AT:N here refers to no additional authentication target beyond the login itself; the configuration dependency is captured via AC:H in the 3.1 vector and is implicit in this scenario). VC:H/VI:H/VA:H for the service account\u0027s own reach; SC:N/SI:N/SA:N since that reach is the application\u0027s own process authority, not a distinct subsequent system.\"}]}], \"affected\": [{\"repo\": \"https://github.com/pgadmin-org/pgadmin4\", \"vendor\": \"pgadmin.org\", \"modules\": [\"Master Password Hook\"], \"product\": \"pgAdmin 4\", \"versions\": [{\"status\": \"affected\", \"version\": \"7.2\", \"lessThan\": \"9.17\", \"versionType\": \"custom\"}], \"programFiles\": [\"https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/utils/master_password.py\", \"https://github.com/pgadmin-org/pgadmin4/blob/master/web/config.py\"], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://github.com/pgadmin-org/pgadmin4/issues/10191\", \"tags\": [\"issue-tracking\"]}, {\"url\": \"https://github.com/pgadmin-org/pgadmin4/commit/ea7e798aac27174d2bacee1d6e136bed76a95e23\", \"tags\": [\"patch\"]}, {\"url\": \"https://github.com/pgadmin-org/pgadmin4/commit/e7a85767314e7b0fe0b35fe80b9c1af38f48dff6\", \"tags\": [\"patch\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The MASTER_PASSWORD_HOOK setting, introduced in pgAdmin 4 7.2, lets an administrator configure an external command that returns a per-user encryption key, with %u in the configured string replaced by the current user\u0027s name. The previous implementation substituted the username directly into the command string and executed the result with subprocess.Popen(..., shell=True). Because the username can originate from an external authentication source (OAuth/OIDC claims, Kerberos, webserver auth) rather than a value pgAdmin fully controls, a username containing shell metacharacters (\u0027;\u0027, \u0027$()\u0027, backticks, pipes, \u0027\u0026\u0026\u0027, newlines) allowed an authenticated user to execute arbitrary commands as the pgAdmin service account in any deployment where the configured hook string uses %u.\\n\\nFix tokenises the trusted, administrator-configured hook string into an argument vector first (using shlex in POSIX-quoting mode, with backslash-escaping disabled so Windows-style paths are not mis-parsed), substitutes the untrusted username into the individual argv elements, and executes with shell=False. The username is therefore always confined to a single argv element; any shell metacharacters it contains are inert. Administrators whose MASTER_PASSWORD_HOOK previously relied on shell features (pipes, redirection, environment-variable expansion, globbing) within the hook string itself must move that logic into the invoked script, since it is no longer interpreted by a shell.\\n\\nThis issue affects pgAdmin 4: from 7.2 before 9.17.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-78\", \"description\": \"CWE-78 Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)\"}, {\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-88\", \"description\": \"CWE-88 Improper Neutralization of Argument Delimiters in a Command (\u0027Argument Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007\", \"shortName\": \"PostgreSQL\", \"dateUpdated\": \"2026-07-31T15:59:16.588Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-17347\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-01T03:56:12.755Z\", \"dateReserved\": \"2026-07-25T02:52:54.844Z\", \"assignerOrgId\": \"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007\", \"datePublished\": \"2026-07-31T15:59:16.588Z\", \"assignerShortName\": \"PostgreSQL\"}",
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}