CVE-2026-47621: CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition in NVIDIA Dynamo
NVIDIA Dynamo for Linux contains a vulnerability where an attacker could cause a race condition in the LoRA manager singleton initialization. A successful exploit of this vulnerability might lead to denial of service and data tampering.
AI Analysis
Technical Summary
This vulnerability in NVIDIA Dynamo for Linux arises from a TOCTOU race condition during the initialization of the LoRA manager singleton. An attacker could exploit this race condition to cause denial of service or tamper with data. The CVSS 3.1 base score is 6.5, reflecting network attack vector, high attack complexity, no privileges required, no user interaction, unchanged scope, no confidentiality impact, low integrity impact, and high availability impact. There is no vendor advisory or patch information available at this time.
Potential Impact
Successful exploitation may result in denial of service and data tampering within NVIDIA Dynamo on Linux systems. The integrity of data can be compromised, and availability of the service may be disrupted. Confidentiality is not impacted according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider limiting exposure of affected systems and monitor for updates from NVIDIA.
CVE-2026-47621: CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition in NVIDIA Dynamo
Description
NVIDIA Dynamo for Linux contains a vulnerability where an attacker could cause a race condition in the LoRA manager singleton initialization. A successful exploit of this vulnerability might lead to denial of service and data tampering.
CVSS v3.1
Score 6.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in NVIDIA Dynamo for Linux arises from a TOCTOU race condition during the initialization of the LoRA manager singleton. An attacker could exploit this race condition to cause denial of service or tamper with data. The CVSS 3.1 base score is 6.5, reflecting network attack vector, high attack complexity, no privileges required, no user interaction, unchanged scope, no confidentiality impact, low integrity impact, and high availability impact. There is no vendor advisory or patch information available at this time.
Potential Impact
Successful exploitation may result in denial of service and data tampering within NVIDIA Dynamo on Linux systems. The integrity of data can be compromised, and availability of the service may be disrupted. Confidentiality is not impacted according to the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider limiting exposure of affected systems and monitor for updates from NVIDIA.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- nvidia
- Date Reserved
- 2026-05-19T19:55:52.529Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a722802bf8831d53935aa14
Added to database: 08/04/2026, 17:57:22 UTC
Last enriched: 08/04/2026, 18:13:29 UTC
Last updated: 08/04/2026, 21:03:36 UTC
Views: 5
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