CVE-2026-116248 (GCVE-0-2026-116248)
Vulnerability from cvelistv5 – Published: 2026-10-30 19:55 – Updated: 2026-10-30 19:55
VLAI
EPSS
VEX
Title
pgAdmin 4: Non-administrators can share a server with every user
Summary
In pgAdmin 4 server mode only administrators are meant to share a server with all users; the server dialog shows the Shared switch only to them. The create and update endpoints of the server API, however, stored the "shared" flag and shared username they were sent, so any user able to register a server could share one with every other user. The servers.json import had a similar gap: a non-administrator's "Shared" entries were removed only after validation, so a file that also held an invalid entry could create a shared server.
A shared server carries no credentials, so this gives no direct access. It lets a user plant a server, named to look trusted, in every other user's tree and pointing at a host the user controls; anyone who then connects to it presents their own database password to that host.
The fix refuses a non-administrator's request that would share a server with HTTP 403, prunes a non-administrator's shared entries from a servers.json import before validating it, and warns at startup about servers shared earlier by non-administrators.
This issue affects pgAdmin 4: before 9.19.
Severity
CWE
- CWE-862 - Missing Authorization
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/pgadmin-org/pgadmin4/issues/10651 | issue-tracking |
| https://github.com/pgadmin-org/pgadmin4/commit/d7… | 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": [
"Servers",
"Import/Export Servers"
],
"product": "pgAdmin 4",
"programFiles": [
"https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/browser/server_groups/servers/__init__.py",
"https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/utils/__init__.py"
],
"repo": "https://github.com/pgadmin-org/pgadmin4",
"vendor": "pgadmin.org",
"versions": [
{
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"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "remediation developer",
"value": "Dave Page \u003cdpage@pgadmin.org\u003e"
},
{
"lang": "en",
"type": "remediation reviewer",
"value": "Kundan Sable \u003ckundan.sable@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": "In pgAdmin 4 server mode only administrators are meant to share a server with all users; the server dialog shows the Shared switch only to them. The create and update endpoints of the server API, however, stored the \"shared\" flag and shared username they were sent, so any user able to register a server could share one with every other user. The servers.json import had a similar gap: a non-administrator\u0027s \"Shared\" entries were removed only after validation, so a file that also held an invalid entry could create a shared server.\n\nA shared server carries no credentials, so this gives no direct access. It lets a user plant a server, named to look trusted, in every other user\u0027s tree and pointing at a host the user controls; anyone who then connects to it presents their own database password to that host.\n\nThe fix refuses a non-administrator\u0027s request that would share a server with HTTP 403, prunes a non-administrator\u0027s shared entries from a servers.json import before validating it, and warns at startup about servers shared earlier by non-administrators.\n\nThis issue affects pgAdmin 4: before 9.19."
}
],
"metrics": [
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"attackVector": "NETWORK",
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"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
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"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "Any authenticated user who can register a server. User Interaction is Required: another user must connect to the planted server. Scope is Changed because what is captured is the other user\u0027s credential for their own database servers; Confidentiality is High for that credential. Integrity is None (the planted entry only alters what other users see) and Availability is None."
}
]
},
{
"cvssV4_0": {
"baseScore": 6,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:H/SI:N/SA:N",
"version": "4.0"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "Same reasoning as the CVSS 3.1 entry. UI:A because the victim must actively connect. VI:L for the planted entry in other users\u0027 trees, SC:H for the other user\u0027s database credentials captured for use elsewhere."
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862 Missing Authorization",
"lang": "en",
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"providerMetadata": {
"dateUpdated": "2026-10-30T19:55:17.531Z",
"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
"shortName": "PostgreSQL"
},
"references": [
{
"tags": [
"issue-tracking"
],
"url": "https://github.com/pgadmin-org/pgadmin4/issues/10651"
},
{
"tags": [
"patch"
],
"url": "https://github.com/pgadmin-org/pgadmin4/commit/d761942d0bb84d52b18e81307064dd08e26224e3"
}
],
"source": {
"discovery": "INTERNAL"
},
"title": "pgAdmin 4: Non-administrators can share a server with every user"
}
},
"cveMetadata": {
"assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
"assignerShortName": "PostgreSQL",
"cveId": "CVE-2026-116248",
"datePublished": "2026-10-30T19:55:17.531Z",
"dateReserved": "2026-10-25T16:26:16.419Z",
"dateUpdated": "2026-10-30T19:55:17.531Z",
"state": "PUBLISHED"
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"vulnerability-lookup:meta": {
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"date": "2026-10-31",
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"percentile": "0.13605"
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"nvd": {
"cve": {
"affected": [
{
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{
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"modules": [
"Servers",
"Import/Export Servers"
],
"product": "pgAdmin 4",
"programFiles": [
"https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/browser/server_groups/servers/__init__.py",
"https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/utils/__init__.py"
],
"repo": "https://github.com/pgadmin-org/pgadmin4",
"vendor": "pgadmin.org",
"versions": [
{
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"status": "affected",
"version": "0",
"versionType": "custom"
}
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"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In pgAdmin 4 server mode only administrators are meant to share a server with all users; the server dialog shows the Shared switch only to them. The create and update endpoints of the server API, however, stored the \"shared\" flag and shared username they were sent, so any user able to register a server could share one with every other user. The servers.json import had a similar gap: a non-administrator\u0027s \"Shared\" entries were removed only after validation, so a file that also held an invalid entry could create a shared server.\n\nA shared server carries no credentials, so this gives no direct access. It lets a user plant a server, named to look trusted, in every other user\u0027s tree and pointing at a host the user controls; anyone who then connects to it presents their own database password to that host.\n\nThe fix refuses a non-administrator\u0027s request that would share a server with HTTP 403, prunes a non-administrator\u0027s shared entries from a servers.json import before validating it, and warns at startup about servers shared earlier by non-administrators.\n\nThis issue affects pgAdmin 4: before 9.19."
}
],
"id": "CVE-2026-116248",
"lastModified": "2026-10-30T20:17:04.883",
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"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
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"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
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"userInteraction": "ACTIVE",
"valueDensity": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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"published": "2026-10-30T20:17:04.883",
"references": [
{
"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
"url": "https://github.com/pgadmin-org/pgadmin4/commit/d761942d0bb84d52b18e81307064dd08e26224e3"
},
{
"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
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"value": "CWE-862"
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}
}
}
}
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