CVE-2026-65098 Overview
CVE-2026-65098 is a weak authentication vulnerability in NVIDIA NemoClaw for Linux. The flaw resides in the product's remote-access helper workflow. An attacker with network access can bypass authentication controls due to insufficient credential validation logic. Successful exploitation can lead to code execution, information disclosure, and data tampering on affected systems.
The vulnerability is tracked under CWE-1390: Weak Authentication. NVIDIA published the advisory in its Product Security Repository.
Critical Impact
Network-based attackers can bypass authentication in the NemoClaw remote-access helper workflow to achieve code execution, disclose sensitive information, or tamper with data.
Affected Products
- NVIDIA NemoClaw for Linux (all versions prior to the vendor-supplied fix)
Discovery Timeline
- 2026-08-25 - CVE-2026-65098 published to the National Vulnerability Database (NVD)
- 2026-08-26 - Last updated in NVD database
Technical Details for CVE-2026-65098
Vulnerability Analysis
CVE-2026-65098 affects the remote-access helper workflow of NVIDIA NemoClaw for Linux. The helper component brokers remote sessions to the underlying service and relies on authentication checks that are insufficient to establish caller identity. An attacker who reaches the helper over the network can exploit the weakness to be treated as an authorized principal.
Once the authentication layer is bypassed, the attacker inherits the privileges available to the helper workflow. That access enables three impact categories cited in the vendor advisory: code execution within the helper context, disclosure of data handled by the service, and modification of stored or in-flight data. Exploitation requires no user interaction and no prior privileges, though the vendor rates the attack complexity as high, indicating that non-trivial preconditions must be satisfied for a reliable exploit.
Root Cause
The root cause is classified as CWE-1390 (Weak Authentication). The remote-access helper workflow accepts requests without verifying the requester with sufficient strength. NVIDIA has not published the specific implementation flaw, but weak authentication issues typically arise from missing challenge-response validation, predictable session tokens, reliance on client-supplied identity claims, or absent mutual authentication between helper components.
Attack Vector
The attack vector is network-based. An attacker sends crafted requests to the NemoClaw remote-access helper endpoint from a position with network reachability to the host. No authenticated session and no user interaction are required. See the NVIDIA advisory and the NVD entry for CVE-2026-65098 for vendor-specific technical details.
Detection Methods for CVE-2026-65098
Indicators of Compromise
- Unexpected connections to the NemoClaw remote-access helper endpoint from hosts outside the documented administrative range.
- Helper-workflow processes spawning unexpected child processes such as /bin/sh, bash, or scripting interpreters.
- Authentication log entries for the helper service that show successful sessions without preceding credential exchange.
- File integrity monitoring alerts on NemoClaw configuration or model directories that do not correlate with change tickets.
Detection Strategies
- Baseline the expected callers of the remote-access helper and alert on any source address deviating from that baseline.
- Inspect helper-workflow authentication code paths and log every accepted request with the presented credential type and validation outcome.
- Correlate helper service session events with subsequent process creation and file write events on the host to surface post-auth abuse.
Monitoring Recommendations
- Enable verbose logging on the NemoClaw service and forward events to a centralized SIEM for retention and correlation.
- Monitor outbound network activity from hosts running NemoClaw for command-and-control patterns following helper-workflow access.
- Track the NVIDIA Product Security Repository for updated indicators and patched build identifiers.
How to Mitigate CVE-2026-65098
Immediate Actions Required
- Apply the NVIDIA-supplied patch for NemoClaw for Linux as soon as the fixed version is available in your environment.
- Restrict network reachability of the remote-access helper endpoint to trusted management subnets using host and network firewall rules.
- Audit recent access to the helper workflow and rotate any credentials or tokens that may have been exposed during the exposure window.
Patch Information
NVIDIA has published fix guidance in the Product Security Repository entry 5872. Consult that advisory for the specific fixed build of NemoClaw for Linux and follow the vendor's upgrade procedure. Confirm the installed version after upgrade to ensure the vulnerable helper workflow has been replaced.
Workarounds
- Block inbound network access to the NemoClaw remote-access helper port at the perimeter and host firewall until the patch is applied.
- Place NemoClaw hosts on a segmented management network that requires VPN or bastion access.
- Disable the remote-access helper workflow if it is not required for the deployment, following NVIDIA's configuration documentation.
# Example: restrict helper access to a trusted management subnet using iptables
# Replace <HELPER_PORT> with the port used by the NemoClaw remote-access helper
# Replace 10.0.10.0/24 with your administrative subnet
iptables -A INPUT -p tcp --dport <HELPER_PORT> -s 10.0.10.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport <HELPER_PORT> -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
