pgAdmin 4: Non-administrators can share a server with every user
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Active
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
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.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| pgadmin.org | pgAdmin 4 | before 9.19 | 9.19 | Patch available | CNA |
- pgAdmin 4 Vendorpgadmin.org Affected before 9.19 Fixed in 9.19 Patch available CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:pgadmin:pgadmin_4:*:*:*:*:*:*:*:* | — | — | pgadmin.org |
- cpe:2.3:a:pgadmin:pgadmin_4:*:*:*:*:*:*:*:* Versions — — ·pgadmin.org
Remediation
- 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
- 2026-10-30 Threatist record created from CVE-2026-116248
- 2026-10-30 Alias added: GHSA-jjwq-6v5r-fhwh
- 2026-11-01 Priority changed: MEDIUM → LOW
- 2026-11-06 CISA SSVC decision points changed
References
More pgadmin.org vulnerabilities
- 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
Sources
- CVE-2026-116248 · CVE Program
- CVE-2026-116248 · NVD
- FIRST EPSS
- GHSA-jjwq-6v5r-fhwh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences