{"cve":"CVE-2026-54235","nvd":{"published":"2026-06-22T23:16:31.143","modified":"2026-10-25T23:10:00.167","status":"Analyzed","description":"vLLM is an inference and serving engine for large language models (LLMs). Prior to 0.23.1rc0, ll temperature validation gates use comparison operators (<, >), which silently evaluate to False for NaN and for positive Infinity in Python's IEEE 754 float semantics. Both values pass every guard and propagate to GPU sampling kernels, where they produce undefined behavior or CUDA errors that can crash the inference worker. This vulnerability is fixed in 0.23.1rc0.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":6.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","score":6.5},"cwes":["CWE-1287"],"references":["https://github.com/vllm-project/vllm/commit/d598d239737cfa37bcfcb98886ec3f3557fc7198","https://github.com/vllm-project/vllm/pull/45116","https://github.com/vllm-project/vllm/security/advisories/GHSA-7h4p-rffg-7823"],"products":["vllm:vllm"],"source":"nvd","synced_at":"2026-10-25T23:44:33.281319194+00:00"},"epss":{"cve":"CVE-2026-54235","score":0.0045,"percentile":0.38846,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-7h4p-rffg-7823","url":"https://osv.dev/vulnerability/GHSA-7h4p-rffg-7823","summary":"vLLM: temperature=NaN and temperature=Infinity bypass validation and propagate to GPU kernels","modified":"2026-09-10T03:50:48.693939195Z","packages":[{"ecosystem":"PyPI","name":"vllm","purl":"pkg:pypi/vllm","ranges":[">=0.8.5 <0.24.0"],"fixed":["0.24.0"]}]},{"id":"PYSEC-2026-3405","url":"https://osv.dev/vulnerability/PYSEC-2026-3405","summary":"vLLM: temperature=NaN and temperature=Infinity bypass validation and propagate to GPU kernels","modified":"2026-07-13T16:33:32.259393907Z","packages":[{"ecosystem":"PyPI","name":"vllm","purl":"pkg:pypi/vllm","ranges":["<=0.23.0"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}