CVE-2026-86288 ModelCloud GPTQModel Triton dequantization kernel tritonv2.py out-of-bounds
Remote attackers can trigger out-of-bounds reads in the Triton dequantization kernel via manipulated arguments, potentially exposing memory or causing crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-86288?
CVE-2026-86288 is a medium-severity memory corruption vulnerability in ModelCloud GPTQModel, published on 7 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Which versions are affected by CVE-2026-86288?
How do I fix CVE-2026-86288?
No fix has been published for CVE-2026-86288 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-86288 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86288 exists.
Sources
Also known as GHSA-4jpr-qjj4-9r96.