CVE-2026-12049
- Source
- https://cve.org/CVERecord?id=CVE-2026-12049
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-12049.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-12049
- Downstream
- Related
- Published
- 2026-06-18T23:37:43Z
- Modified
- 2026-10-28T02:31:06Z
- Severity
-
- 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- pgAdmin 4: Open redirect in multi-factor authentication flow via unvalidated 'next' parameter
- Details
-
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= -- 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.
- Database specific
{ "cna_assigner": "PostgreSQL", "cwe_ids": [ "CWE-601" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/12xxx/CVE-2026-12049.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/12xxx/CVE-2026-12049.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-12049
- https://github.com/pgadmin-org/pgadmin4/issues/10028
- https://github.com/pgadmin-org/pgadmin4/commit/fff6a481854b07822c2b54e8181e6a9076d204cd
- https://github.com/pgadmin-org/pgadmin4
Affected packages
Git / github.com/pgadmin-org/pgadmin4
Affected ranges
- Type
- GIT
- Repo
- https://github.com/pgadmin-org/pgadmin4
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:pgadmin:pgadmin_4:*:*:*:*:*:postgresql:*:*", "range": [ { "introduced": "6.0" }, { "fixed": "9.16" } ], "source": "CPE_RANGE" }, { "range": [ { "fixed": "fff6a481854b07822c2b54e8181e6a9076d204cd" } ], "source": "REFERENCES_COMMIT" } ] }