> CVE-2026-54234 [HIGH]

« BACK_TO_HOME
PUBLISHED
2026-07-06 21:16
MODIFIED
2026-07-06 21:16
CVSS_SCORE V3
7.5
EPSS (Prob. Exploit)
0.62%
Top 50.5%
DATA SOURCES:
NVD 🔗 2026-07-06 RED HAT 🔗 2026-07-12 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-01 OSV 🔗 2026-11-02

> DESCRIPTION

vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. Prior to 0.24.0, a frontend-legal multi-request speculative decoding workload can cause the rejection sampler to produce a recovered token equal to the model vocabulary size boundary value, which is then converted to negative one when the engine selects the next live token for a request and is written back into the drafter's input ids; that out-of-vocabulary value is later consumed by the model's embedding and attention path and crashes the engine worker with a GPU device-side assertion. The same triggering request sequence is reachable through the public gRPC Generate and Abort endpoints, so a remote client that can send generation requests can crash the shared engine worker, aborting concurrent requests and causing a service-wide denial of service for other clients of the deployment until the worker is restarted. This issue is fixed in version 0.24.0.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EXPLOITABILITY
3.9
IMPACT
3.6

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-20 CWE-1284

> CWE DETAILED DESCRIPTIONS

CWE-20: Improper Input Validation - The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. | CWE-1284: Improper Validation of Specified Quantity in Input - The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Red Hat AI Inference Server 3.3.6 (Spyre)
Red Hat AI Inference Server 3.3.6 (Spyre) is now available.
Red Hat Security Advisory: Red Hat AI Inference Server 3.2.2 (ROCm)
Red Hat AI Inference Server 3.2.2 (ROCm) is now available.
Red Hat Security Advisory: Red Hat AI Inference Server 3.2.2 (CUDA)
Red Hat AI Inference Server 3.2.2 (CUDA) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (rocm)
Red Hat AI Inference 3.4.5 (rocm) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (cuda)
Red Hat AI Inference 3.4.5 (cuda) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (cpu)
Red Hat AI Inference 3.4.5 (cpu) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (spyre)
Red Hat AI Inference 3.4.5 (spyre) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (rocm)
Red Hat AI Inference 3.4.5 (rocm) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (cuda)
Red Hat AI Inference 3.4.5 (cuda) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (spyre)
Red Hat AI Inference 3.4.5 (spyre) is now available.
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (cpu)
Red Hat AI Inference 3.4.5 (cpu) is now available.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.4.5 security update
Updated Red Hat Enterprise Linux AI 3.4.5 container images are now available.
Red Hat Security Advisory: Red Hat Enterprise Linux AI 3.4.5 security update
Updated Red Hat Enterprise Linux AI 3.4.5 container disk images are now available.

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Important

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

vLLM: Remote DoS in vLLM via Invalid Recovered Token Reinjection

AFFECTED PACKAGES:
Unknown / Unknown
95 versions affected
ALIASES:
GHSA-8wr5-jm2h-8r4f, PYSEC-2026-3542

> HISTORIQUE DES MODIFICATIONS

Première apparition
06/07/2026 21:16
Source: NVD
📊 ENRICHISSEMENT 01/08/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-20: Improper Input Validation - The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process...
📊 ENRICHISSEMENT 12/07/2026 05:01
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 12/07/2026 05:01
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 3 Dernière mise à jour: 3 months ago

> REFERENCES

https://github.com/vllm-project/vllm/commit/8a5cf1ccd65e8ac7635c402c1ec0b08988bc...
https://github.com/vllm-project/vllm/pull/44744
https://github.com/vllm-project/vllm/security/advisories/GHSA-8wr5-jm2h-8r4f
« BACK_TO_HOME