Quick answers
- Is CVE-2026-61761 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-61761 being exploited in the wild.
- How severe is CVE-2026-61761?
- High severity, with a CVSS score of 7.8, published 1 September 2026.
- Which products and versions are affected?
- Nvidia Megatron-Bridge <UNKNOWN>.
- Is there a fix for CVE-2026-61761?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-61761 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-61761?
- Check whether you run Nvidia Megatron-Bridge or Nvidia Nemo Megatron Bridge at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a classic unsafe deserialization flaw in NVIDIA Megatron Bridge that allows an attacker to deserialize untrusted data. The vulnerable component accepts serialized objects from the network without proper validation, enabling an unauthenticated attacker to craft malicious payloads that execute arbitrary code during deserialization. The attack requires network access to the affected service but no authentication. A successful exploit results in remote code execution, data tampering, and information disclosure on the target system.
Affected products
- NVIDIA Megatron Bridge <UNKNOWN>
Timeline
- 2026-09-01: disclosed