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 in possession of a valid web filter override token to inject arbitrary headers via tricking a user into clicking on a crafted link.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Fortinet | FortiOS | 7.6.0 – ≤ 7.6.4, 7.4.0 – ≤ 7.4.12, 7.2.0 – ≤ 7.2.13, 7.0.0 – ≤ 7.0.19, 6.4.0 – ≤ 6.4.16 | — |
| 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 | — |
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