CVE-2026-7141

vLLM KV Block kv_cache_interface.py has_mamba_layers uninitialized resource

MEDIUM
5.6
CVSS Score
Published: April 27, 2026 at 04:45 PM UTC
Updated: August 25, 2026 at 08:30 PM UTC
1 product affected across 1 vendorvLLM

Using vllm by N/A?

Get instant alerts when new vulnerabilities affect vllm - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.6
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

A vulnerability was found in vllm up to 0.19.0. The affected element is the function has_mamba_layers of the file vllm/v1/kv_cache_interface.py of the component KV Block Handler. Performing a manipulation results in uninitialized resource. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitability is described as difficult. The exploit has been made public and could be used. The patch is named 1ad67864c0c20f167929e64c875f5c28e1aad9fd. To fix this issue, it is recommended to deploy a patch.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (8)

VDB EntryTechnical DescriptionThird Party Advisory
Source: cverecord
https://vuldb.com/vuln/359740
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/359740/cti
Third Party AdvisoryVDB Entry
Source: cverecord
https://vuldb.com/submit/801297
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-7141

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.6MEDIUMVulDB
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-908

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card