CVE-2026-86288: Out-of-Bounds Read in ModelCloud GPTQModel
Description
CVE-2026-86288 is a medium severity vulnerability in ModelCloud GPTQModel versions 7.0, 7.1, and 7.2.0. It involves an out-of-bounds read in the Triton dequantization kernel component due to improper handling of the g_idx argument. This flaw can be exploited remotely and has been publicly disclosed. Upgrading to version 7.3.0 resolves the issue.
CVSS v4.0
Score 5.3medium
Affected software
ModelCloud
GPTQModel
pkg:github/modelcloud/GPTQModelcpe:2.3:a:modelcloud:gptqmodel:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-86288 affects the ModelCloud GPTQModel software up to version 7.2.0. It is caused by an out-of-bounds read in the file gptqmodel/nn_modules/qlinear/tritonv2.py within the Triton dequantization kernel component. The issue arises from manipulation of the argument g_idx, which leads to reading memory outside the intended bounds. This vulnerability can be exploited remotely without privileges or user interaction. A patch identified by commit 877c732f7d7dccd56a729844c6a5bd20f3aa8bb1 is available in version 7.3.0, which fixes the problem.
Potential Impact
The vulnerability allows an attacker to perform an out-of-bounds read remotely, potentially leading to information disclosure or application instability. The CVSS 4.0 base score is 5.3 (medium severity), reflecting network attack vector, low complexity, no privileges required, and limited confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Upgrade ModelCloud GPTQModel to version 7.3.0 or later, which contains the official fix for this vulnerability. No other mitigation is indicated or required according to the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-06T15:40:50.945Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a9e77e3acd9273b493fb3c2
Added to database: 09/07/2026, 08:37:55 UTC
Last enriched: 09/15/2026, 01:09:55 UTC
Last updated: 10/23/2026, 01:15:27 UTC
Views: 91
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