CVE-2026-9813

CRITICAL

FlowIntel external reference URL probe allows server-side request forgery

Title source: cna
STIX 2.1

Description

FlowIntel up to version 3.3.0 contains a server-side request forgery (SSRF) vulnerability in the external reference URL probe functionality in app/case/task.py. An attacker who can submit an external reference URL can cause the application server to issue an HTTP HEAD request to an attacker-specified destination. Due to insufficient validation of the URL scheme and resolved destination address, affected versions may allow requests to loopback, link-local, private, reserved, or other restricted network resources, potentially enabling interaction with internal services or cloud metadata endpoints from the server's network context.

Scores

CVSS v3 9.9
EPSS 0.0023
EPSS Percentile 13.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-918
Status published
Products (1)
flowintel/flowintel < 3.3.0 (2 CPE variants)
Published May 28, 2026
Tracked Since May 28, 2026