CVE-2026-7814: pgAdmin 4 Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-6p2c-69cv-3fxq
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CVSS 4.8
CWE-79
Published
Advisory Summary

CVE-2026-7814 is a MODERATE (CVSS 4.8) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting pgAdmin 4 libraries in the PyPI ecosystem. The issue involves stored cross-site scripting (xss) vulnerability in browser tree and explain visualizer modules. Remediation is available by upgrading affected packages to version 9.15.

CVE-2026-7814 at a Glance

CVE Identifier CVE-2026-7814
GHSA Identifier GHSA-6p2c-69cv-3fxq
Severity MODERATE
CVSS v3.1 Base Score 4.8
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product pgAdmin 4
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 4.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required High (PR:H)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2026-7814

To remediate this vulnerability, upgrade all affected pgAdmin 4 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

pgadmin4 fixed: 9.15 
pip install pgadmin4>=9.15
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show pgadmin4

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-7814, inspect your installed packages using pip:

pip show pgadmin4

Analyze the terminal output to locate any version of pgAdmin 4 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.15), your application is affected.

Note: The pip show pgadmin4 command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In pgAdmin 4, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Stored cross-site scripting (XSS) vulnerability in pgAdmin 4 Browser Tree and Explain Visualizer modules. User-controlled PostgreSQL object names (database, schema, table, column, etc.) were assigned to DOM elements via innerHTML, allowing crafted object names containing HTML markup to execute attacker-supplied JavaScript in the browser of any pgAdmin user who navigated to or executed EXPLAIN over the malicious object. Fix replaces innerHTML with textContent. This issue affects pgAdmin 4: before 9.15.

CVE-2026-7814 Affected pgAdmin 4 Versions

1 component(s)
Fixed Versions:
9.15
Product / Package Ecosystem Affected Versions Fixed Version
pgadmin4
pypi/pgadmin4
PyPI
< 9.15
9.15

References

NVD — CVE-2026-7814 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7814
pgAdmin 4 Source Repository REPOSITORY
https://github.com/pgadmin-org/pgadmin4/issues/9865
pgAdmin 4 Source Repository REPOSITORY
https://github.com/pgadmin-org/pgadmin4/pull/9865
pgAdmin 4 Source Repository REPOSITORY
https://github.com/pgadmin-org/pgadmin4

Frequently Asked Questions

What is CVE-2026-7814?
CVE-2026-7814 is a security vulnerability in pgAdmin 4 involving Stored cross-site scripting (XSS) vulnerability in Browser Tree and Explain Visualizer modules under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which pgAdmin 4 versions are affected?
Affected versions include releases prior to 9.15 across affected packages: pgadmin4.
What version fixes CVE-2026-7814?
Upgrading to 9.15 (or the latest patched release for your respective branch) resolves the vulnerability.
Is pgadmin4 affected?
Yes, pgadmin4 is affected in releases prior to 9.15. Upgrade your dependency to 9.15 or later.
What is the CVSS score of CVE-2026-7814?
CVE-2026-7814 has a CVSS v3.1 base score of 4.8 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2026-7814?
CVE-2026-7814 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check PyPI dependencies for CVE-2026-7814?
Run the dependency tree command: 'pip show pgadmin4'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-6p2c-69cv-3fxq",
  "modified" : "2026-05-18T14:32:31Z",
  "published" : "2026-05-11T18:31:44Z",
  "aliases" : [ "CVE-2026-7814" ],
  "summary" : "pgAdmin 4: Stored cross-site scripting (XSS) vulnerability in Browser Tree and Explain Visualizer modules",
  "details" : "Stored cross-site scripting (XSS) vulnerability in pgAdmin 4 Browser Tree and Explain Visualizer modules.\n\nUser-controlled PostgreSQL object names (database, schema, table, column, etc.) were assigned to DOM elements via innerHTML, allowing crafted object names containing HTML markup to execute attacker-supplied JavaScript in the browser of any pgAdmin user who navigated to or executed EXPLAIN over the malicious object.\n\nFix replaces innerHTML with textContent.\n\nThis issue affects pgAdmin 4: before 9.15.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "pgadmin4"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "9.15"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-7814"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pgadmin-org/pgadmin4/issues/9865"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pgadmin-org/pgadmin4/pull/9865"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/pgadmin-org/pgadmin4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-18T14:32:31Z",
    "nvd_published_at" : "2026-05-11T16:17:37Z"
  }
}