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7.8

NVIDIA Megatron Bridge can run attacker code

CVE-2026-61761 · published 2 months ago
Summary

The Megatron Bridge component from NVIDIA can be tricked into processing malicious data, allowing an attacker to execute their own programs, alter data, or view confidential information. This risk affects any system using this component. Apply the latest NVIDIA updates or patches and limit network access to the bridge to trusted sources.

What to do
  • Update nvidia nemo_megatron_bridge to version 0.5.1 or later.
Affected software
VendorProductAffected versions
nvidia megatron bridge 0.0 to 0.5.0
nvidia nemo_megatron_bridge < 0.5.1
cpe:2.3:a:nvidia:nemo_megatron_bridge:*:*:*:*:*:*:*:*
Original advisory text
NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tamp...
NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
7.8 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-502Deserialization of Untrusted Data
Timeline
Published1 Sep 2026
Updated4 Nov 2026
First seen1 Sep 2026
Sources
CVE-2026-61761 · NVD
CVE-2026-61761 · MITRE
CVE-2026-61761 · OSV
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