ET WEB_SPECIFIC_APPS Fortinet FortiSandbox Unauthenticated Remote Code Execution (CVE-2026-39808)

Query · suricata

flow:established,to_server;
http.uri;
content:"/fortisandbox/job-detail/tracer-behavior|3f|"; fast_pattern;
content:"jid|3d|";
pcre:"/^[^&]*?(?:\x7c|\x25(?:25)?7[cC])/R";
http.method;
content:"GET";
target:dest_ip;
Raw source ET WEB_SPECIFIC_APPS Fortinet FortiSandbox Unauthenticated Remote Code Execution (CVE-2026-39808) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Fortinet FortiSandbox Unauthenticated Remote Code Execution (CVE-2026-39808)";
    flow:established,to_server;
    http.uri;
    content:"/fortisandbox/job-detail/tracer-behavior|3f|"; fast_pattern;
    content:"jid|3d|";
    pcre:"/^[^&]*?(?:\x7c|\x25(?:25)?7[cC])/R";
    http.method;
    content:"GET";
    reference:url,github.com/samu-delucas/CVE-2026-39808;
    reference:cve,2026-39808;
    classtype:web-application-attack;
    sid:2068806; rev:1;
    metadata:attack_target Server, tls_state TLSDecrypt, created_at 2026_04_16, cve CVE_2026_39808, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, updated_at 2026_04_16, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)

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