CVE-2026-116241 (GCVE-0-2026-116241)
Vulnerability from cvelistv5 – Published: 2026-10-30 19:55 – Updated: 2026-10-30 19:55
VLAI
EPSS
VEX
Title
pgAdmin 4: Import/Export Data query export runs a command through a backslash in a double-quoted identifier
Summary
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)
CWE
Assigner
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 | CPE status | |
|---|---|---|---|---|
| pgadmin.org | pgAdmin 4 |
Affected:
0 , < 9.19
(custom)
|
guessed |
Date Public
2026-10-29 00:00
{
"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",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-116241",
"date": "2026-10-31",
"epss": "0.00324",
"percentile": "0.25472"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"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",
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}
]
}
],
"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"
}
],
"cveTags": [],
"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."
}
],
"id": "CVE-2026-116241",
"lastModified": "2026-10-30T20:17:03.813",
"metrics": {
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"availabilityRequirement": "NOT_DEFINED",
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"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
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"valueDensity": "NOT_DEFINED",
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"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
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"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
"type": "Secondary"
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},
"published": "2026-10-30T20:17:03.813",
"references": [
{
"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
"url": "https://github.com/pgadmin-org/pgadmin4/commit/9be31a019f780647fb689c458408c8803263c812"
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"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
"url": "https://github.com/pgadmin-org/pgadmin4/issues/10663"
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}
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