CVE-2026-55514

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.

PUBLISHED Reserved 2026-06-16 | Published 2026-07-06 | Updated 2026-07-06 | Assigner GitHub_M

Problem types

CWE-617: Reachable Assertion

Product status

References

github.com/...t/vllm/security/advisories/GHSA-33cg-gxv8-3p8g

github.com/vllm-project/vllm/pull/45252

github.com/...ommit/470229c37efaf69c86e8bc97482b0b1ff7551c65

github.com/vllm-project/vllm/releases/tag/v0.24.0

cve.org (CVE-2026-55514)

nvd.nist.gov (CVE-2026-55514)

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