| Component | vLLM |
| Severity | medium (CVSS 6.5) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Published (NVD) | 2026-07-06 |
| Last modified | 2026-07-07 |
| Affected versions | vllm >= 0.12.0, < 0.24.0 |
| Fixed in | 0.24.0 |
| Weakness | CWE-617 |
| CISA KEV | not listed |
NVD description
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.
What to do
- Upgrade vLLM to
0.24.0or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-55514
- https://github.com/vllm-project/vllm/security/advisories/GHSA-33cg-gxv8-3p8g
- https://github.com/vllm-project/vllm/commit/470229c37efaf69c86e8bc97482b0b1ff7551c65
- https://github.com/vllm-project/vllm/pull/45252
- https://github.com/vllm-project/vllm/releases/tag/v0.24.0
Read more
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