CVE-2026-9813

FlowIntel external reference URL probe allows server-side request forgery

Published May 28, 2026 CVSS 4.0 · 6.2 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:flowintel:flowintel:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

Type Values Removed Values Added
First Time appeared Flowintel
Flowintel flowintel
Vendors & Products Flowintel
Flowintel flowintel
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title FlowIntel external reference URL probe allows server-side request forgery
Weaknesses CWE-918
References
Metrics cvssV4_0

{'score': 6.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:L/SI:H/SA:H/S:N/RE:L/U:Green'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
CIRCL
Published
Updated
May 28, 2026, 10:31 AM
Reserved
May 28, 2026, 9:25 AM
Status
Analyzed
Published
May 28, 2026, 10:16 AM
Modified
Jun 17, 2026, 11:05 AM