{"apiVersion":"1.0","identifier":"CVE-2026-73557","description":"vLLM is an inference and serving engine for large language models. From 0.20.2rc0 until 0.26.0, safe_load_prompt_embeds in vllm/renderers/embed_utils.py uses torch.sparse.check_sparse_tensor_invariants, whose process-global save, enable, and restore state can be raced by concurrent prompt_embeds parts submitted to POST /v1/chat/completions through AsyncMultiModalItemTracker.resolve_items, asyncio.gather, and the default executor, allowing an invalid sparse tensor to reach tensor.to_dense despite the CVE-2025-62164 guard when enable_prompt_embeds is enabled. This issue is fixed in version 0.26.0.","publishedAt":"2026-08-13T15:20:18","lastModifiedAt":"2026-08-13T18:18:18","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73557","cvssScore":6.3,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","epssProbability":0.00251,"riskScore":0.64,"affectedProduct":"vLLM","affectedVersions":">=0.20.2rc0,<0.26.0","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-73557","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-73557","en":"https://www.redsauce.net/en/cves/CVE-2026-73557","fr":"https://www.redsauce.net/fr/cves/CVE-2026-73557","pt":"https://www.redsauce.net/pt/cves/CVE-2026-73557","de":"https://www.redsauce.net/de/cves/CVE-2026-73557","sk":"https://www.redsauce.net/sk/cves/CVE-2026-73557","el":"https://www.redsauce.net/el/cves/CVE-2026-73557"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-73557"}}