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AI / ML CVE-2026-30820

HIGH
Incorrect Authorization (CWE-863)
2026-03-07 security-advisories@github.com GHSA-wvhq-wp8g-c7vq
Authentication Bypass AI / ML Flowise
8.8
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Mar 11, 2026 - 13:46 vuln.today
Public exploit code
CVE Published
Mar 07, 2026 - 05:16 nvd
HIGH 8.8

DescriptionGitHub Advisory

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.

AnalysisAI

Privilege escalation in Flowise versions prior to 3.0.13 allows authenticated users to bypass API authorization by spoofing an internal request header, granting access to sensitive administrative functions including API key and credential management. Public exploit code exists for this vulnerability, and an attacker with valid tenant credentials can escalate to administrative privileges without additional authentication. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate as low-privilege tenant
Delivery
Set x-request-from: internal header
Exploit
Bypass authorization checks on /api/v1/** endpoints
Execution
Access admin functions and API keys
Impact
Escalate privileges
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Vulnerability AssessmentAI

Exploitation Flowise versions prior to 3.0.13 with x-request-from: internal header trust mechanism enabled. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 8.8 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker (requires authentication) could exploit this vulnerability to compromise the affected system.
Remediation Fixed in version 3.0.13.. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours: Inventory all Flowise deployments and document current versions; isolate any instances running versions below 3.0.13 from production if possible. …

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CVE-2026-30820 vulnerability details – vuln.today
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