CVE-2026-94626

highpriority · track · 30EPSS 0.006 · 50 %ileDEUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.63% (50th) EPSS

CVSS 7.5 · high

Is it mine?

4 products

Check your exposure

Who says so?

3 sources

cert_bund · nvd · osv

EPSS · scored 2026-10-27

vLLM through 0.29.0 fails to validate the tp_size parameter in kv_transfer_params on OpenAI-compatible completion endpoints, allowing attackers to allocate unbounded memory. Attackers can supply arbitrary tp_size values in prefill/decode disaggregated deployments to exhaust memory and trigger kernel OOM-kill of the decode worker process.

cvss

Technical severity, 0–10. One row per scoring source.

8.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–8.7

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · disclosure@vulncheck.comexploitability 3.9 · impact 3.6

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · disclosure@vulncheck.com

v4.06.6mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-789US

affected products (4)

Products and version ranges known to be affected.

Open Source vllm <0.30.0all versionscert_bundDE
Open Source vllm< 0.30.0cert_bundDE
vllm vllm≤ 0.29.0nvdUScpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*
PyPI vllm< 0.30.0osvUSpkg:pypi/vllm

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3507vllm: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2026-09-21csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in vllm ausnutzen, um einen Denial of Service Angriff durchzuführen.
PYSEC-2026-40082026-09-21vendor · osvUS
vLLM through 0.29.0 fails to validate the tp_size parameter in kv_transfer_params on OpenAI-compatible completion endpoints, allowing attackers to allocate unbounded memory. Attackers can supply arbitrary tp_size values in prefill/decode disaggregated deployments to exhaust memory and trigger kernel OOM-kill of the decode worker process.

sources

Which sources assert this record, and when.

cert_bund nvd osv NVD CVE.org MITRE

published 2026-09-21modified 2026-09-29

references (5) nvd

External citations — patches, advisories, analysis.

scry

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