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Crafted database name redirects pgAdmin 4 connections

Priority LOW 31CWE-522Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure, Code execution
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-522 and CWE-88.

Summary

pgAdmin 4 before 9.19 passes a database name unchanged to psql's --dbname argument during materialized view refresh. libpq parses a name containing "=" or a postgresql:// URI as a connection string that overrides the configured host and port. An authenticated user with the CREATEDB role can name a database this way to redirect the connection to an address of their choosing, where the connecting user's saved server password is sent.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

pgAdmin 4's materialized view refresh passed the target database's name to psql's --dbname argument unchanged. libpq treats a --dbname value containing "=" (or a postgresql:// URI) as a full connection string, whose keywords override the host, port and other settings pgAdmin had supplied. A database whose name is such a string, which any role with CREATEDB can create, therefore redirected the psql process pgAdmin starts for the refresh to a host and port of the creator's choosing, and the connecting user's saved server password was presented to that endpoint. It also let the pgAdmin host be made to open connections to arbitrary addresses. The same weakness was fixed for Backup, Restore, Maintenance and Import/Export Data in earlier releases (CVE-2026-86862); the materialized view refresh was the remaining caller. The fix routes the name through the same database_conninfo() helper, so libpq treats it strictly as a database name. This issue affects pgAdmin 4: before 9.19.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00247 16th percentileScored 2026-11-07
Fix Fixed pgAdmin 4 (pgadmin.org): 9.19

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
pgadmin.orgpgAdmin 4before 9.199.19Patch availableCNA
  • pgAdmin 4 Vendorpgadmin.org Affected before 9.19 Fixed in 9.19 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:pgadmin:pgadmin_4:*:*:*:*:*:*:*:*before 9.19Vulnerablepgadmin.org
  • cpe:2.3:a:pgadmin:pgadmin_4:*:*:*:*:*:*:*:* Versions before 9.19 Vulnerable ·pgadmin.org

Remediation

Fixed in pgAdmin 4 9.19. Upgrade pgAdmin 4 to version 9.19.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

  • Fix · CNA pgAdmin 4 (pgadmin.org) Fixed in 9.19

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    pgadmin.org pgAdmin 4 9.19

    15 records Highest priority Priority MEDIUM 3 MEDIUM, 12 LOW

    Other records, highest priority first

    • TI-2026-83355 Command execution via backslash bypass in pgAdmin 4 query exportPriority MEDIUM 42
    • TI-2026-83352 Failed login limit bypass in pgAdmin 4 allows unlimited password guessingPriority MEDIUM 42
    • TI-2026-83353 pgAdmin 4 LDAP or Kerberos login opens another account by usernamePriority MEDIUM 41

Timeline

  1. 2026-10-30 Threatist record created from CVE-2026-116252
  2. 2026-10-30 Alias added: GHSA-c8mg-g5cp-g9w7
  3. 2026-11-01 Priority changed: MEDIUM → LOW
  4. 2026-11-06 CISA SSVC decision points changed

References

  • TI-2024-01901 Unsafe Deserialisation and Remote Code Execution by an Authenticated user in pgAdmin 4 CVSS 3.1CRITICAL 9.9
  • TI-2024-02918 Remote Code Execution Vulnerability through the validate binary path API in pgAdmin 4 CVSS 3.1CRITICAL 9.8
  • TI-2022-03867 Code injection in pgadmin4 CVSS 3.1HIGH 8.8
  • TI-2026-06875 pgAdmin 4: Cross-user data access and shared-server privilege escalation in server mode CVSS 4.0CRITICAL 9.4
  • TI-2025-02572 pgAdmin 4: Remote Code Execution in Query Tool and Cloud Deployment CVSS 3.1CRITICAL 9.9
  • TI-2023-00228 Path traversal in pgadmin CVSS 3.1MEDIUM 6.5
See all 56 →

Sources