CVE-2025-62826

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.

Scoring

Severity

LOW

CVSS base score

3.1

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C

EPSS probability

0.37%

CWE

CWE-113

Published

2026-07-14

Last modified

2026-08-11

Affected products

• Fortinet FortiPAM
• Fortinet FortiPAM
• Fortinet FortiPAM
• Fortinet FortiPAM
• Fortinet FortiPAM
• Fortinet FortiPAM
• Fortinet FortiPAM
• Fortinet FortiPAM

Weakness type

• CWE-113

Related vulnerabilities

• CVE-2026-77341 — cpp-httplib: CRLF injection via unvalidated HTTP trailer headers in chunked response writing
• CVE-2026-39915 — TIM Flow < 26.0.6 CRLF Injection via rt Parameter
• CVE-2026-50576 — ePA 3.x Integration: HTTP Header Injection in VAU Inner Requests
• CVE-2026-67289 — FreeRDP before 3.29.0 HTTP Proxy Request Injection via Redirection
• CVE-2026-66746 — Rouille 0.4.0 - 3.6.2 HTTP Response Splitting via Header Injection
• CVE-2026-66753 — tiny-http 0.12.0 HTTP Response Splitting via Header Injection
• CVE-2026-63771 — Adminer < 5.4.3 Cookie Injection via X-Forwarded-Prefix Header
• CVE-2026-54163 — secure_headers: CSP directive injection via sandbox, plugin_types, and report_to when given untrusted input

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