Vulnerability-Lookup

GHSA-3JX6-4898-6Q3M

Vulnerability from github – Published: 2026-10-30 21:32 – Updated: 2026-10-30 21:32

Details

pgAdmin 4's Import/Export Data tool wraps a user's query export in a psql \copy (...) TO command and checks that the query's parentheses are balanced so that nothing can escape the wrapper. The check rejected a backslash inside a single-quoted string, but not inside a double-quoted identifier, where it treated the next double quote as closing the identifier. psql's \copy parser applies the connection's escape character to whichever quote opened a token, so with standard_conforming_strings off a backslash-escaped double quote does not close the identifier. pgAdmin's and psql's view of the quoting then diverged, a closing parenthesis hidden from the check ended the \copy (...) wrapper, and a following TO PROGRAM clause was executed by psql on the pgAdmin host, as the operating-system account running pgAdmin, before the server rejected the statement. An ordinary database role can turn standard_conforming_strings off for itself, and the Import/Export Data permission is granted to non-administrators by default.

This is a bypass of the fix for CVE-2026-17566. The fix rejects any backslash inside a double-quoted identifier, as was already done for single-quoted strings, since its meaning depends on a server setting that cannot be known reliably when the query is validated.

This issue affects pgAdmin 4: before 9.19.

Severity

9.9 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

9.4 (Critical)


                  
                    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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-116241"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-30T20:17:03Z",
    "severity": "CRITICAL"
  },
  "details": "pgAdmin 4\u0027s Import/Export Data tool wraps a user\u0027s query export in a psql \\copy (...) TO command and checks that the query\u0027s parentheses are balanced so that nothing can escape the wrapper. The check rejected a backslash inside a single-quoted string, but not inside a double-quoted identifier, where it treated the next double quote as closing the identifier. psql\u0027s \\copy parser applies the connection\u0027s escape character to whichever quote opened a token, so with standard_conforming_strings off a backslash-escaped double quote does not close the identifier. pgAdmin\u0027s and psql\u0027s view of the quoting then diverged, a closing parenthesis hidden from the check ended the \\copy (...) wrapper, and a following TO PROGRAM clause was executed by psql on the pgAdmin host, as the operating-system account running pgAdmin, before the server rejected the statement. An ordinary database role can turn standard_conforming_strings off for itself, and the Import/Export Data permission is granted to non-administrators by default.\n\nThis is a bypass of the fix for CVE-2026-17566. The fix rejects any backslash inside a double-quoted identifier, as was already done for single-quoted strings, since its meaning depends on a server setting that cannot be known reliably when the query is validated.\n\nThis issue affects pgAdmin 4: before 9.19.",
  "id": "GHSA-3jx6-4898-6q3m",
  "modified": "2026-10-30T21:32:21Z",
  "published": "2026-10-30T21:32:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116241"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pgadmin-org/pgadmin4/issues/10663"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pgadmin-org/pgadmin4/commit/9be31a019f780647fb689c458408c8803263c812"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "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/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"
    }
  ]
}

CVE-2026-116241 (GCVE-0-2026-116241)

Vulnerability from cvelistv5 – Published: 2026-10-30 19:55 – Updated: 2026-10-30 19:55

Title

pgAdmin 4: Import/Export Data query export runs a command through a backslash in a double-quoted identifier

Summary

Severity

9.9 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

9.4 (Critical)


                        
                          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

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-115 - Misinterpretation of Input

Assigner

PostgreSQL CNA under the redhat root

CNA scorecard C 69/100 over 115 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/pgadmin-org/pgadmin4/issues/10663	issue-tracking
https://github.com/pgadmin-org/pgadmin4/commit/9b…	patch

Impacted products

1 product

Vendor	Product	Version
pgadmin.org	pgAdmin 4	Affected: 0 , < 9.19 (custom)

Date Public

2026-10-29 00:00

Credits

Yonghwa Lee (Xint by Theori) <underdog@theori.io> Dave Page <dpage@pgadmin.org> Hitesh Jambhale <hitesh.jambhale@enterprisedb.com> Ashesh Vashi <ashesh.vashi@enterprisedb.com>

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "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": "9.19",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Yonghwa Lee (Xint by Theori) \u003cunderdog@theori.io\u003e"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Dave Page \u003cdpage@pgadmin.org\u003e"
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "Hitesh Jambhale \u003chitesh.jambhale@enterprisedb.com\u003e"
        },
        {
          "lang": "en",
          "type": "remediation reviewer",
          "value": "Ashesh Vashi \u003cashesh.vashi@enterprisedb.com\u003e"
        }
      ],
      "datePublic": "2026-10-29T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "pgAdmin 4\u0027s Import/Export Data tool wraps a user\u0027s query export in a psql \\copy (...) TO command and checks that the query\u0027s parentheses are balanced so that nothing can escape the wrapper. The check rejected a backslash inside a single-quoted string, but not inside a double-quoted identifier, where it treated the next double quote as closing the identifier. psql\u0027s \\copy parser applies the connection\u0027s escape character to whichever quote opened a token, so with standard_conforming_strings off a backslash-escaped double quote does not close the identifier. pgAdmin\u0027s and psql\u0027s view of the quoting then diverged, a closing parenthesis hidden from the check ended the \\copy (...) wrapper, and a following TO PROGRAM clause was executed by psql on the pgAdmin host, as the operating-system account running pgAdmin, before the server rejected the statement. An ordinary database role can turn standard_conforming_strings off for itself, and the Import/Export Data permission is granted to non-administrators by default.\n\nThis is a bypass of the fix for CVE-2026-17566. The fix rejects any backslash inside a double-quoted identifier, as was already done for single-quoted strings, since its meaning depends on a server setting that cannot be known reliably when the query is validated.\n\nThis issue affects pgAdmin 4: before 9.19."
        }
      ],
      "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": "Same threat model and outcome as CVE-2026-17566, of which this is a bypass: any authenticated user with the Import/Export Data permission (granted by default) and an ordinary database role, which can set standard_conforming_strings itself, so Attack Complexity is Low. Confidentiality, Integrity and Availability are High for command execution on the pgAdmin host. Scope is Changed, as for CVE-2026-17566, because the command runs on the pgAdmin host rather than within the database server the user is connected to."
            }
          ]
        },
        {
          "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 and the same vector as CVE-2026-17566. AT:N because no condition outside the attacker\u0027s control is needed. VC/VI/VA:H for the pgAdmin host and SC/SI/SA:H for the systems reachable from it with its credentials."
            }
          ]
        }
      ],
      "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": "2026-10-30T19:55:13.194Z",
        "orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
        "shortName": "PostgreSQL"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/pgadmin-org/pgadmin4/issues/10663"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/pgadmin-org/pgadmin4/commit/9be31a019f780647fb689c458408c8803263c812"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "pgAdmin 4: Import/Export Data query export runs a command through a backslash in a double-quoted identifier"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
    "assignerShortName": "PostgreSQL",
    "cveId": "CVE-2026-116241",
    "datePublished": "2026-10-30T19:55:13.194Z",
    "dateReserved": "2026-10-25T16:26:16.419Z",
    "dateUpdated": "2026-10-30T19:55:13.194Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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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