Description
An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability [CWE-113] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4 all versions, FortiOS 7.2 all versions, FortiProxy 7.6.0 through 7.6.4, FortiProxy 7.4 all versions, FortiProxy 7.2 all versions may allow an attacker able to intercept and modify a user's captive portal authentication request to inject arbitrary headers via crafted HTTP requests.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Fortinet | FortiPAM | 1.7.0, 1.6.0 – ≤ 1.6.2, 1.5.0 – ≤ 1.5.1, 1.4.0 – ≤ 1.4.3, 1.3.0 – ≤ 1.3.1, 1.2.0, 1.1.0 – ≤ 1.1.2, 1.0.0 – ≤ 1.0.3 | — |
| Fortinet | FortiProxy | 7.6.0 – ≤ 7.6.4, 7.4.0 – ≤ 7.4.14, 7.2.0 – ≤ 7.2.16, 7.0.0 – ≤ 7.0.23 | — |
| Fortinet | FortiOS | 7.6.0 – ≤ 7.6.2, 7.4.0 – ≤ 7.4.8, 7.2.0 – ≤ 7.2.13, 7.0.0 – ≤ 7.0.19, 6.4.0 – ≤ 6.4.16 | — |
Advisories 2
- SSA-864900 SSA-864900: Multiple Vulnerabilities in Fortigate NGFW before V7.6.6 on RUGGEDCOM APE1808 Devices Siemens ProductCERT · Oct 13, 2026
- WID-SEC-2026-2329 Fortinet FortiProxy und FortiOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 14, 2026