EUVD-2026-66090
GHSA-r343-96vw-2jfv
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Network vector and no attacker privileges required; UI:R reflects mandatory victim interaction with the malicious gateway; full C/I/A impact consistent with arbitrary OS command execution.
Primary rating from Vendor (nvidia).
CVSS VectorVendor: nvidia
Lifecycle Timeline
2DescriptionCVE.org
NVIDIA OpenShell for all platforms contains a vulnerability where a malicious gateway could cause OS command injection. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure.
Articles & Coverage 1
AnalysisAI
OS command injection in NVIDIA OpenShell across all supported platforms allows a network-accessible malicious gateway to execute arbitrary operating system commands on a victim host when a user interacts with that gateway. The CVSS 8.8 vector (AV:N/AC:L/PR:N/UI:R) reflects that an attacker requires no privileges on the victim system but does require the victim to interact with a malicious or attacker-controlled gateway endpoint. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that a victim user actively connect to or interact with an attacker-controlled or attacker-compromised gateway - this is the UI:R condition in the CVSS vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 score reflects a genuinely high-severity finding: network-accessible (AV:N), low complexity (AC:L), no attacker privileges required (PR:N), and high impact across all three pillars (C:H/I:H/A:H). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Consult the NVIDIA product security advisory at https://github.com/NVIDIA/product-security/tree/main/2026/5872 for the vendor-released patch; no specific fixed version number was present in the available input data, so upgrade to the version identified in that advisory as the primary remediation. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all systems running NVIDIA OpenShell and prioritize protection of critical workstations; implement firewall/proxy rules to restrict OpenShell gateway connectivity to explicitly authorized endpoints only. …
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Privilege escalation and remote code execution in NVIDIA OpenShell for Linux stem from an incomplete deny-list in its sa
Sandbox escape in NVIDIA OpenShell for Linux lets a low-privileged actor already operating inside the sandbox break its
Path traversal in NVIDIA OpenShell Sandbox for Linux permits low-privileged network-authenticated attackers to bypass L7
OS command injection in NVIDIA OpenShell for Linux's sandbox exec handler allows a low-privileged, network-accessible at
Improper output encoding in NVIDIA OpenShell's inference proxy on Linux allows a local low-privileged attacker to cause
Same weakness CWE-78 – OS Command Injection
View allSame technique Command Injection
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External POC / Exploit Code
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