{"apiVersion":"1.0","identifier":"CVE-2026-73555","description":"vLLM is an inference and serving engine for large language models. Prior to 0.26.0, the validation_exception_handler in vllm/entrypoints/openai/server_utils.py converts FastAPI RequestValidationError objects with str(exc), and sanitize_message in vllm/entrypoints/utils.py does not remove traceback-style file paths, allowing unauthenticated malformed JSON requests to /v1/chat/completions, /v1/completions, /tokenize, and /detokenize to disclose the OS username, home and virtual-environment paths, Python version, internal package structure, line numbers, and endpoint handler names. This issue is fixed in version 0.26.0.","publishedAt":"2026-08-13T15:20:17","lastModifiedAt":"2026-08-14T16:17:00","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73555","cvssScore":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","epssProbability":0.00255,"riskScore":0.54,"affectedProduct":"vLLM","affectedVersions":"<0.26.0","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-73555","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-73555","en":"https://www.redsauce.net/en/cves/CVE-2026-73555","fr":"https://www.redsauce.net/fr/cves/CVE-2026-73555","pt":"https://www.redsauce.net/pt/cves/CVE-2026-73555","de":"https://www.redsauce.net/de/cves/CVE-2026-73555","sk":"https://www.redsauce.net/sk/cves/CVE-2026-73555","el":"https://www.redsauce.net/el/cves/CVE-2026-73555"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-73555"}}