{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-17566",
                "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": "2026-08-01T03:56:13.838Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "Import/Export Data"
          ],
          "product": "pgAdmin 4",
          "programFiles": [
            "https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/tools/import_export/__init__.py"
          ],
          "repo": "https://github.com/pgadmin-org/pgadmin4",
          "vendor": "pgadmin.org",
          "versions": [
            {
              "lessThan": "9.18",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Arpit Jain (arpitjain099)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Ashesh Vashi \u003cashesh.vashi@enterprisedb.com\u003e"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "pgAdmin 4\u0027s Import/Export Data tool builds a psql \\copy (...) command line by interpolating a user-supplied SQL query into a Jinja template and passing the rendered line to psql via --command. To stop an attacker from breaking out of the (...) wrapper, create_import_export_job() (route POST /import_export/job/\u003csid\u003e, gated only by the ordinary, commonly-granted tools_import_export_data permission) validated the query with a hand-written parenthesis-balance checker, _is_query_parens_balanced(). That checker always treated a backslash before a single quote (\\\u0027) as escaping the quote, i.e. as if standard_conforming_strings were off. PostgreSQL has defaulted standard_conforming_strings to on since 9.1 (2010), the default on every PostgreSQL version pgAdmin 4 currently supports (13-18); under that default psql\u0027s own \\copy tokenizer treats \\ as an ordinary character, so a single quote immediately after it closes the string literal. A query such as SELECT \u0027a\\\u0027) TO PROGRAM \u0027echo pwned\u0027 x\u0027 was therefore accepted as \"balanced\" by pgAdmin\u0027s checker (which believed the ) was still inside the string), while psql, run through the actual rendered command line, closes the string at that point and treats the following ) as the end of the wrapping \\copy (...) subquery, exposing an attacker-chosen TO PROGRAM \u0027\u003ccommand\u003e\u0027 clause that psql executes via popen() -- independent of a subsequent syntax error later on the same line. This is the same class of bug as CVE-2025-12762/CVE-2025-13780 (RCE via psql meta-command/COPY injection during PLAIN-format dump restore), reached through an independently written defense in a different module (Import/Export Data rather than Restore) that had its own, different logic bug (inverted backslash-escape semantics rather than a BOM-defeated regex anchor).\n\nThe fix rejects any backslash inside a single-quoted string in the query outright, rather than picking one of the two possible psql interpretations. This is intentionally conservative: because the correct interpretation of \\ depends on the target server\u0027s standard_conforming_strings setting, which the checker cannot reliably know at validation time, refusing the query is safer than guessing.\n\nThis issue affects pgAdmin 4: from the introduction of _is_query_parens_balanced() before 9.18."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "Threat model: same as CVE-2025-12762/13780. An authenticated pgAdmin user (server mode) holding only the ordinary, routinely-granted \"Import/Export Data\" tool permission (tools_import_export_data) -- not an admin-only permission -- submits a single crafted POST to /import_export/job/\u003csid\u003e with is_query_export true and a query field containing the payload. No further user interaction, no special server-side configuration, and no elevated pgAdmin role is required. Successful exploitation runs an arbitrary OS command as the pgAdmin application server\u0027s service account, which is a privilege escalation beyond anything the Import/Export Data permission is meant to grant (database-query access, not host command execution) -- Scope Changed. Impact is full compromise of the pgAdmin host (C/I/A: High)."
            }
          ]
        },
        {
          "cvssV4_0": {
            "baseScore": 9.4,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
            "version": "4.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "Same reasoning as the CVSS 3.1 entry: network-reachable, low privilege required, no user interaction, host RCE compromises both pgAdmin\u0027s own authority (SC/SI/SA: High) and the underlying system data/integrity/availability (VC/VI/VA: High)."
            }
          ]
        }
      ],
      "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-115",
              "description": "CWE-115 Misinterpretation of Input",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-31T16:00:22.738Z",
        "orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
        "shortName": "PostgreSQL"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/pgadmin-org/pgadmin4/issues/10213"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/pgadmin-org/pgadmin4/commit/1496fabe28c9f825f6bac0f0d000d9d3276322c3"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "pgAdmin 4: RCE via backslash-escape mismatch in Import/Export Data query guard (incomplete defense, sibling gap to CVE-2025-13780)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
    "assignerShortName": "PostgreSQL",
    "cveId": "CVE-2026-17566",
    "datePublished": "2026-07-31T16:00:22.738Z",
    "dateReserved": "2026-07-27T14:43:12.802Z",
    "dateUpdated": "2026-08-01T03:56:13.838Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}