CVE-2026-116502
turboderp-org ExLlamaV2 GPTQ Index q_matrix.cu make_sequential out-of-bounds write
- State
- Published
- Severity
- 4.8 Medium
- Published
- Oct 26, 2026
- Updated
- Oct 26, 2026
- Reserved
- Oct 26, 2026
Description
A flaw has been found in turboderp-org ExLlamaV2 up to 0.3.2. The impacted element is the function QMatrix::make_sequential of the file exllamav2/exllamav2_ext/cuda/q_matrix.cu of the component GPTQ Index Handler. Executing a manipulation of the argument g_idx can lead to out-of-bounds write. The attack needs to be launched locally. The project was informed of the problem early through an issue report but has not responded yet.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X | VulDB |
| 3.1 | 4.4 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:X/RC:C | VulDB |
| 3.0 | 4.4 Medium | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:X/RC:C | VulDB |
| 2.0 | 3.2 Low | AV:L/AC:L/Au:S/C:N/I:P/A:P/E:ND/RL:ND/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
ExLlamaV2turboderp-org |
|
References
- VDB-426401 | turboderp-org ExLlamaV2 GPTQ Index q_matrix.cu make_sequential out-of-bounds writevdb-entrytechnical-description
- VDB-426401 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-116502 | CVE Analysis and Reportthird-party-advisory
- Submit #1022425 | turboderp-org / ExLlamaV2 exllamav2 0.0.4 - 0.3.2 Heap out-of-bounds write caused by an unvalidated GPTQ `g_idx` vthird-party-advisory
- https://github.com/turboderp-org/exllamav2/issues/817issue-tracking
- https://github.com/turboderp-org/exllamav2/product
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