CVE-2026-86288

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-09-07. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
6.3
EG Score
6.3(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

September 7, 2026

Last Modified

September 8, 2026

Advisory Details (4)

Auto-updated Sep 7, 2026
🔬 Proof of concept available. Upstream fix merged — awaiting tagged release. Sources: github_pr, github_commit.
generic

GitHub - ModelCloud/GPTQModel: LLM model quantization (compression) toolkit with HW acceleration support for Nvidia, AMD, Intel GPU and Intel/AMD/Apple CPU via HF, vLLM, and SGLang. · GitHub

https://github.com/ModelCloud/GPTQModel/
github_commit

commit 877c732f7d7d (ModelCloud/GPTQModel)

Fix landed in ModelCloud/GPTQModel commit 877c732f7d7d — awaiting tagged release

https://github.com/ModelCloud/GPTQModel/commit/877c732f7d7dccd56a729844c6a5bd20f3aa8bb1
github_pr

fix(triton): bound-check checkpoint g_idx to prevent OOB dequant read (#2949)

Fix merged in ModelCloud/GPTQModel PR #2950 on 2026-07-14 — awaiting tagged release

https://github.com/ModelCloud/GPTQModel/pull/2950
generic🟡 PoC Available

Out-of-bounds read in the Triton dequant kernel via an unchecked checkpoint `g_idx` (CWE-125) · Issue #2949 · ModelCloud/GPTQModel · GitHub

https://github.com/ModelCloud/GPTQModel/issues/2949

Vendor Advisories for CVE-2026-86288(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 19× in last 7d / 42× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 08:33 UTCEG score recompute
  2. 2026-09-20 08:33 UTCGHSA enrichment
  3. 2026-09-19 07:00 UTCEG score recompute
  4. 2026-09-19 07:00 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-18 05:26 UTCEG score recompute
  7. 2026-09-18 05:26 UTCGHSA enrichment
  8. 2026-09-17 19:32 UTCEPSS rescore
  9. 2026-09-17 03:53 UTCEG score recompute
  10. 2026-09-17 03:53 UTCGHSA enrichment
  11. 2026-09-16 14:09 UTCEPSS rescore
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-16 02:20 UTCEG score recompute
  14. 2026-09-16 02:20 UTCGHSA enrichment
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-15 00:47 UTCGHSA enrichment
  18. 2026-09-13 23:14 UTCEG score recompute
  19. 2026-09-13 23:14 UTCGHSA enrichment
  20. 2026-09-12 21:42 UTCEG score recompute
  21. 2026-09-12 21:42 UTCGHSA enrichment
  22. 2026-09-11 20:09 UTCEG score recompute
  23. 2026-09-11 20:09 UTCGHSA enrichment
  24. 2026-09-11 14:53 UTCEPSS rescore
  25. 2026-09-11 14:53 UTCEPSS rescore
Show 17 more
  1. 2026-09-10 18:29 UTCEG score recompute
  2. 2026-09-10 18:28 UTCGHSA enrichment
  3. 2026-09-09 16:55 UTCEG score recompute
  4. 2026-09-09 16:55 UTCGHSA enrichment
  5. 2026-09-08 22:01 UTCEPSS rescore
  6. 2026-09-08 14:59 UTCEG score recompute
  7. 2026-09-08 14:59 UTCGHSA enrichment
  8. 2026-09-08 14:26 UTCNVD updateCVSS v4 → 2.1
  9. 2026-09-08 13:56 UTCEG score recompute
  10. 2026-09-08 13:56 UTCGHSA enrichment
  11. 2026-09-08 13:44 UTCMITRE cvelistV5CVSS v4 → 5.3
  12. 2026-09-08 11:06 UTCEG score recompute
  13. 2026-09-08 11:06 UTCGHSA enrichment
  14. 2026-09-07 09:30 UTCEG score recompute
  15. 2026-09-07 09:30 UTCNVD updateCVSS v4 → 2.1
  16. 2026-09-07 08:38 UTCEG score recompute
  17. 2026-09-07 08:36 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-86288?
CVE-2026-86288 is a medium vulnerability published on September 7, 2026. A vulnerability has been found in ModelCloud GPTQModel up to 7.2.0. This vulnerability affects unknown code of the file gptqmodel/nnmodules/qlinear/tritonv2.py of the component Triton dequantization kernel. Such manipulation of the argument gidx leads to out-of-bounds read. The attack can be…
When was CVE-2026-86288 disclosed?
CVE-2026-86288 was first published in the National Vulnerability Database on September 7, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86288 actively exploited?
CVE-2026-86288 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 77.9% of all scored CVEs.
What is the CVSS score of CVE-2026-86288?
CVE-2026-86288 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-86288?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86288, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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