Is CVE-2026-30820 actively exploited?

No active exploitation of CVE-2026-30820 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-30820 be exploited remotely?

Yes. CVE-2026-30820 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-30820?

CVE-2026-30820 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2026-30820

CWE-863Published: March 7, 2026· Updated: Mar 11, 2026

8.8

CVSS v3.1

EPSS:0.06%probability of exploitation in 30 daysPercentile:17.6th

Official Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.0.13, Flowise trusts any HTTP client that sets the header x-request-from: internal, allowing an authenticated tenant session to bypass all /api/v1/** authorization checks. With only a browser cookie, a low-privilege tenant can invoke internal administration endpoints (API key management, credential stores, custom function execution, etc.), effectively escalating privilege. This issue has been patched in version 3.0.13.

NVD Source

Technical Analysis

CVE-2026-30820 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.