Quick answers
- Is CVE-2026-61756 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-61756 being exploited in the wild.
- How severe is CVE-2026-61756?
- High severity, with a CVSS score of 7.8, published 1 September 2026.
- Which products and versions are affected?
- NVIDIA Megatron Bridge.
- Is there a fix for CVE-2026-61756?
- 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-2026-61756 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-61756?
- Check whether you run Nvidia Megatron-Bridge or Nvidia Nemo Megatron Bridge. 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 where untrusted data is deserialized without proper validation. An attacker can craft a malicious serialized payload that, when deserialized by the application, triggers arbitrary code execution. The attack requires network access to systems running the vulnerable Megatron Bridge component. Successful exploitation results in remote code execution, data tampering, and information disclosure with no authentication required.
Affected products
- NVIDIA Megatron Bridge
Timeline
- 2026-09-01: disclosed: CVE-2026-61756 published