CVE-2026-129356
vllm-project vllm Common Prefix single_type_kv_cache_manager.py race condition
Published Nov 15, 2026
CVSS 4.0 · 2.3 Low
EPSS n/a
KEV · Not listed
Description
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.
Analysis
Affected Products
-
CVE record
-
NVD configurations
No data
-
Red Hat packages
No data
-
OpenCVE enrichment
No data
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| vllm-project | vllm | affected |
|
No data.
No data.
No data available yet.
Remediation
Tracking
Advisories
Metrics
Attack Vector Network
Attack Complexity High
Privileges Required Low
Attack Requirements None
User Interaction None
Vulnerable System Confidentiality Impact Low
Vulnerable System Integrity Impact Low
Vulnerable System Availability Impact Low
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
Attack Vector Network
Attack Complexity High
Privileges Required Low
Scope Unchanged
Confidentiality Impact Low
Integrity Impact Low
Availability Impact Low
User Interaction None
Attack Vector Network
Attack Complexity High
Privileges Required Low
Scope Unchanged
Confidentiality Impact Low
Integrity Impact Low
Availability Impact Low
User Interaction None
Access Vector Network
Access Complexity High
Authentication Single
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No EPSS score available.
Key SSVC decision points have not yet been added.
References
History
Nov 15, 2026 1:30 AM
Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated
View changes
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | vllm-project vllm Common Prefix single_type_kv_cache_manager.py race condition | |
| First Time appeared |
Vllm-project
Vllm-project vllm |
|
| Weaknesses | CWE-362 | |
| CPEs | cpe:2.3:a:vllm-project:vllm:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Vllm-project
Vllm-project vllm |
|
| References |
|
|
| Metrics |
cvssV2_0
|
Subscriptions
Weaknesses
-
CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Sources
Vulnrichment
No data
No data.
NVD
No data
No data.
Red Hat
No data
No data.
OpenCVE enrichment
No data
No data.