Answer in brief
CVE-2026-129356 records a Low severity (CVSS 2.3) vulnerability in vllm-project vllm Common Prefix single_type_kv_cache_manager.py race condition. The current sources do not mark it as known exploited. The current feed maps vllm-project/vllm (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 2.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps vllm-project/vllm (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| vllm-project/vllmgeneric | 0.30.0 || 0.31.0 | Not reported |
Published upstream
Nov 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 15, 2026
A vulnerability was found in vllm-project vllm 0.30.0/0.31.0. This vulnerability affects unknown code of the file single_type_kv_cache_manager.py of the component Common Prefix Handler. The manipulation results in race condition. The attack may be performed from remote. Attacks of this nature are highly complex. It is stated that the exploitability is difficult. The exploit has been made public and could be used. Upgrading to version 0.32.0 is able to resolve this issue. The patch is identified as e687a251bb056fa527846633f7a1b0a6c0f42374. You should upgrade the affected component.
Quoted source text, attributed separately from HOL analysis.