turboderp-org ExLlamaV2 up to 0.3.2 GPTQ Index q_matrix.cu QMatrix::make_sequential g_idx out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k1.42-

Summaryinfo

A vulnerability has been found in turboderp-org ExLlamaV2 up to 0.3.2 and classified as problematic. This affects the function QMatrix::make_sequential of the file exllamav2/exllamav2_ext/cuda/q_matrix.cu of the component GPTQ Index Handler. The manipulation of the argument g_idx leads to out-of-bounds write. This vulnerability is documented as CVE-2026-116502. The attack needs to be performed locally. There is not any exploit available. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability was found in turboderp-org ExLlamaV2 up to 0.3.2. It has been rated as problematic. This issue affects the function QMatrix::make_sequential of the file exllamav2/exllamav2_ext/cuda/q_matrix.cu of the component GPTQ Index Handler. The manipulation of the argument g_idx with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is integrity, and availability.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-116502. The exploitation is known to be easy. An attack has to be approached locally. Technical details are known, but no exploit is available.

The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 4.4
VulDB Temp Score: 4.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/26/2026 Advisory disclosed
10/26/2026 +0 days VulDB entry created
10/26/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 817
Status: Confirmed

CVE: CVE-2026-116502 (🔒)
GCVE (CVE): GCVE-0-2026-116502
GCVE (VulDB): GCVE-100-426401

Entryinfo

Created: 10/26/2026 14:11
Changes: 10/26/2026 14:11 (56)
Complete: 🔍
Submitter: m00dy
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #1022425: turboderp-org / ExLlamaV2 exllamav2 0.0.4 - 0.3.2 Heap out-of-bounds write caused by an unvalidated GPTQ `g_idx` v (by m00dy)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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