CVE-2026-105757

vLLM is an inference and serving engine for large language models. Prior to 0.30.0, structured-output request failures can escape request-scoped validation and reach the EngineCore fatal-error path. A per-request backend mismatch can re-raise a grammar compilation exception, padding produced by the ngram_gpu speculative-decoding mode can pass a negative token to guidance validation, and the Rust frontend can admit empty structured-output values that the Python frontend rejects, allowing ordinary constrained-generation requests to terminate the shared engine. This issue is fixed in version 0.30.0.
Configurations

Configuration 1 (hide)

cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*

History

08 Oct 2026, 01:28

Type Values Removed Values Added
References () https://github.com/vllm-project/vllm/commit/c55e15a44ec4127832d4a86928a356fdd9e68dbd - () https://github.com/vllm-project/vllm/commit/c55e15a44ec4127832d4a86928a356fdd9e68dbd - Patch
References () https://github.com/vllm-project/vllm/pull/51450 - () https://github.com/vllm-project/vllm/pull/51450 - Issue Tracking, Patch
References () https://github.com/vllm-project/vllm/releases/tag/v0.30.0 - () https://github.com/vllm-project/vllm/releases/tag/v0.30.0 - Release Notes
References () https://github.com/vllm-project/vllm/security/advisories/GHSA-85xf-c7hm-whqw - () https://github.com/vllm-project/vllm/security/advisories/GHSA-85xf-c7hm-whqw - Mitigation, Vendor Advisory
CPE cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*
First Time Vllm vllm
Vllm

05 Oct 2026, 23:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-10-05 23:17

Updated : 2026-10-08 01:28


NVD link : CVE-2026-105757

Mitre link : CVE-2026-105757

CVE.ORG link : CVE-2026-105757


JSON object : View

Products Affected

vllm

  • vllm
CWE
CWE-20

Improper Input Validation

CWE-248

Uncaught Exception

CWE-755

Improper Handling of Exceptional Conditions