What is the CVSS score of EUVD-2026-26075?

EUVD-2026-26075 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of NVIDIA NVFlare Dashboard are affected by EUVD-2026-26075?

NVIDIA NVFlare Dashboard contains a critical authentication bypass vulnerability (CVSS 9.8) enabling unauthenticated remote attackers to escalate privileges and achieve arbitrary code execution.. A patch is available.

How to fix or mitigate EUVD-2026-26075?

Within 24 hours: Identify all systems running NVIDIA NVFlare SDK and isolate affected Dashboard instances from production networks or disable remote access. Within 7 days: Monitor NVIDIA security advisories for patch availability; contact NVIDIA support for interim guidance on version-specific mitigations. Within 30 days: Apply vendor-released patch immediately upon availability and conduct full system audit for unauthorized access.

NVIDIA NVFlare Dashboard EUVD-2026-26075

| CVE-2026-24178 CRITICAL

Authorization Bypass Through User-Controlled Key (CWE-639)

2026-04-28 nvidia

GHSA-jqp3-qrgh-4846

RCE Authentication Bypass Nvidia Information Disclosure Privilege Escalation Denial Of Service

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Re-analysis Queued

Apr 28, 2026 - 20:23 vuln.today

cvss_changed

Analysis Generated

Apr 28, 2026 - 20:01 vuln.today

EUVD ID Assigned

Apr 28, 2026 - 19:30 euvd

EUVD-2026-26075

Analysis Generated

Apr 28, 2026 - 19:30 vuln.today

CVE Published

Apr 28, 2026 - 17:44 nvd

CRITICAL 9.8

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

1 pypi packages depend on nvflare (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 2.7.2.

DescriptionCVE.org

NVIDIA NVFlare Dashboard contains a vulnerability in the user management and authentication system where an unauthenticated attacker may cause authorization bypass through user-controlled key. A successful exploit of this vulnerability may lead to privilege escalation, data tampering, information disclosure, code execution, and denial of service.

AnalysisAI

Authentication bypass in NVIDIA NVFlare Dashboard allows remote unauthenticated attackers to escalate privileges through user-controlled key manipulation in the authentication system. The vulnerability affects the NVIDIA Flare SDK and enables complete system compromise including arbitrary code execution, data tampering, information disclosure, and denial of service. With a CVSS score of 9.8 (critical severity) and maximum exploitability metrics (AV:N/AC:L/PR:N/UI:N), this represents a severe security flaw requiring immediate remediation, though no active exploitation (KEV) or public exploit code has been identified at time of analysis.

Technical ContextAI

NVIDIA NVFlare (NVIDIA Federated Learning Application Runtime Environment) is a framework for secure federated learning across distributed systems. The Dashboard component provides user management and authentication services for this distributed ML platform. This vulnerability exploits CWE-639 (Authorization Bypass Through User-Controlled Key), where the authentication system improperly trusts user-supplied input to make authorization decisions. The flaw allows attackers to manipulate authentication keys or tokens to bypass the entire authentication mechanism. The affected product is identified by CPE cpe:2.3:a:nvidia:flare_sdk, indicating the core Flare SDK package contains the vulnerable Dashboard component. This class of vulnerability typically involves cryptographic weaknesses, session token manipulation, or flawed role-based access control implementations where user-supplied data directly influences authorization without proper validation.

RemediationAI

Apply the security update specified in NVIDIA Security Bulletin 5819 available at https://nvidia.custhelp.com/app/answers/detail/a_id/5819, which contains the patched version details and upgrade instructions. Until patching is complete, implement network segmentation to restrict Dashboard access to trusted internal networks only, enforcing IP allowlisting at firewall or reverse proxy layers to prevent unauthorized network access. Deploy multi-factor authentication mechanisms external to the Dashboard (such as VPN with MFA or zero-trust network access) as a defense-in-depth layer, though this does not eliminate the underlying vulnerability. Disable the Dashboard interface entirely if not actively required for operations, managing NVFlare deployments through command-line tools or API access with separate authentication controls. Monitor authentication logs for anomalous access patterns, failed login attempts from unexpected sources, or privilege escalation events. Note that network restrictions trade operational flexibility for security and may complicate legitimate remote administration workflows.