{"id":"CVE-2025-62164","aliases":["GHSA-mrw7-hf4f-83pf","PYSEC-2026-2018"],"url":"https://o3.security/vulnerability/CVE-2025-62164","summary":"VLLM deserialization vulnerability leading to DoS and potential RCE","details":"vLLM is an inference and serving engine for large language models (LLMs). From versions 0.10.2 to before 0.11.1, a memory corruption vulnerability could lead to a crash (denial-of-service) and potentially remote code execution (RCE), exists in the Completions API endpoint. When processing user-supplied prompt embeddings, the endpoint loads serialized tensors using torch.load() without sufficient validation. Due to a change introduced in PyTorch 2.8.0, sparse tensor integrity checks are disabled by default. As a result, maliciously crafted tensors can bypass internal bounds checks and trigger an out-of-bounds memory write during the call to to_dense(). This memory corruption can crash vLLM and potentially lead to code execution on the server hosting vLLM. This issue has been patched in version 0.11.1.","published":"2025-11-21T01:18:38.803Z","modified":"2026-08-08T03:47:42.689638441Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"vllm","fixedVersion":"0.11.1"}],"fix":{"url":"https://github.com/vllm-project/vllm/commit/58fab50d82838d5014f4a14d991fdb9352c9c84b","label":"vllm-project/vllm@58fab50"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/62xxx/CVE-2025-62164.json"},{"type":"ADVISORY","url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-mrw7-hf4f-83pf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-62164"},{"type":"FIX","url":"https://github.com/vllm-project/vllm/commit/58fab50d82838d5014f4a14d991fdb9352c9c84b"},{"type":"FIX","url":"https://github.com/vllm-project/vllm/pull/27204"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:47:42.689638441Z"}}