CVE-2026-55514 — vLLM denial of service via prompt embeds on M-RoPE models
vLLM is a library for LLM inference and serving. From 0.12.0 to before 0.24.0, sending a pure prompt embeds payload in a /v1/completions request with a model using M-RoPE causes…
Published: 2026-07-06 · CVSS: 7.1 · CVSS 4.0
vLLM is a library for LLM inference and serving. From 0.12.0 to before 0.24.0, sending a pure prompt embeds payload in a /v1/completions request with a model using M-RoPE causes EngineCore to fail an assertion and fatally crash, shutting down the entire server application. Any remote user who is authorized to make a /v1/completions request can make such a request and induce a crash. This issue is fixed in version 0.24.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7