pgAdmin 4: Open redirect in multi-factor authentication flow via unvalidated 'next' parameter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-601.
Summary
Open redirect in pgAdmin 4's multi-factor authentication flow. The MFA validate and register endpoints honoured the user-supplied 'next' query/form parameter without confirming the target pointed back inside pgAdmin, so an authenticated victim who clicked /mfa/validate?next=<external> -- a link typically delivered by phishing -- would be sent to an attacker-controlled host directly out of the trusted auth flow. The defect is a trusted-domain redirect, not a privilege bypass: the attacker gains no read/write access to pgAdmin or the victim's database, but the redirect launders the attacker's destination through pgAdmin's URL, which raises the success rate of credential-phishing follow-on against the victim. Fix introduces a same-origin _is_safe_redirect_url helper and gates every MFA redirect that consumes user-supplied 'next' values through it. The helper allows only relative paths and absolute URLs whose scheme is http(s) and whose host matches the current request host; it rejects external hosts in absolute and protocol-relative form, non-http schemes (javascript:, data:, mailto:), userinfo tricks (http://localhost@attacker/), and backslash variants that some browsers normalize to forward slashes. Unsafe targets fall back to the internal browser index. A dedicated regression test exercises each accept/reject category and the original reporter PoC. This issue affects pgAdmin 4: from 6.0 before 9.16.
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 | 6.0 to before 9.16 | 9.16 | Patch available | CNA |
- pgAdmin 4 Vendorpgadmin.org Affected 6.0 to before 9.16 Fixed in 9.16 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:pgadmin:pgadmin_4:*:*:*:*:*:postgresql:*:* | 6.0 to before 9.16 | Vulnerable | pgadmin.org |
- cpe:2.3:a:pgadmin:pgadmin_4:*:*:*:*:*:postgresql:*:* Versions 6.0 to before 9.16 Vulnerable ·pgadmin.org
Remediation
- Fix · CNA pgAdmin 4 (pgadmin.org) Fixed in 9.16
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
pgadmin.org pgAdmin 4 9.16
7 records Highest priority Priority MEDIUM 4 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-10383 Missing authentication in pgadmin.org pgAdmin 4Priority MEDIUM 45
- TI-2026-10382 pgAdmin 4: AI Assistant read-only transaction bypass allows unauthorised writes and remote code executionPriority MEDIUM 43
- TI-2026-10385 pgAdmin 4: Stored XSS via untrusted error and plan-node text rendered through html-react-parserPriority MEDIUM 42
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-12049
- 2026-10-03 Alias added: GHSA-7r93-vp6c-cw5m
References
More pgadmin.org Pgadmin 4 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-2026-12049 · CVE Program
- CVE-2026-12049 · NVD
- FIRST EPSS
- GHSA-7r93-vp6c-cw5m · GitHub Advisory Database · CC BY 4.0
- CVE-2026-12049 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences