Deserialization of Untrusted Data Affecting nemo package, versions <2.7.3-r11
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-NEMO-18002245
- published17 Jul 2026
- disclosed24 May 2026
Introduced: 24 May 2026
CVE-2026-4372 (opens in a new tab)How to fix?
Upgrade Chainguard nemo to version 2.7.3-r11 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream nemo package and not the nemo package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
A critical remote code execution vulnerability exists in all versions of the HuggingFace transformers library prior to version 5.3.0. The vulnerability allows an attacker to craft a malicious config.json file containing the _attn_implementation_internal field set to an attacker-controlled HuggingFace Hub repository ID. When a victim loads this model using the standard AutoModelForCausalLM.from_pretrained() API, the library downloads and executes arbitrary Python code from the attacker's repository with the victim's full OS privileges. This issue arises due to unfiltered deserialization of configuration attributes, insufficient sanitization of internal fields, and unsandboxed execution of downloaded kernels. The vulnerability bypasses the trust_remote_code security mechanism, is invisible to the victim, and exploits the standard documented usage pattern, making it particularly severe. Users are advised to upgrade to version 5.3.0 or later to mitigate this issue.