Description
IBM i 7.3, 7.4, 7.5, and 7.6 could allow an unathenticated remote attacker to bypass security restrictions due to improper access control. By sending a specially crafted HTTP request to any URL within the Navigator application prior to authentication, a bad actor could exploit this vulnerability to alter server-side session security state.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| IBM | i | 7.6, 7.5, 7.4, 7.3 | — |
Advisories 1
- WID-SEC-2026-3907 IBM i: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 20, 2026
References
- https://www.ibm.com/support/pages/node/7292223 vendor-advisory patch