{"action":"Upgrade vllm to 0.11.1 or later.","affected":[{"fixed":"0.11.1","introduced":"0.5.5"}],"component":"vllm","cve_ids":["CVE-2025-62426"],"ecosystem":"PyPI","epss":0.00538,"exploited":false,"fixed_versions":["0.11.1"],"ghsa_id":"GHSA-69j4-grxj-j64p","id":"tcs_01M5KF30V8P9XZKS02RW6P5R1X","modified_at":"2026-09-10T03:50:30.637114193Z","published_at":"2025-11-20T21:26:24Z","references":["https://osv.dev/vulnerability/GHSA-69j4-grxj-j64p","https://github.com/vllm-project/vllm/security/advisories/GHSA-69j4-grxj-j64p","https://nvd.nist.gov/vuln/detail/CVE-2025-62426","https://github.com/vllm-project/vllm/pull/27205","https://github.com/vllm-project/vllm/commit/3ada34f9cb4d1af763fdfa3b481862a93eb6bd2b","https://github.com/advisories/GHSA-69j4-grxj-j64p","https://github.com/pypa/advisory-database/tree/main/vulns/vllm/PYSEC-2026-2012.yaml","https://github.com/vllm-project/vllm","https://github.com/vllm-project/vllm/blob/2a6dc67eb520ddb9c4138d8b35ed6fe6226997fb/vllm/entrypoints/chat_utils.py#L1602-L1610","https://github.com/vllm-project/vllm/blob/2a6dc67eb520ddb9c4138d8b35ed6fe6226997fb/vllm/entrypoints/openai/serving_engine.py#L809-L814","https://pypi.org/project/vllm"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-69j4-grxj-j64p","url":"https://osv.dev/vulnerability/GHSA-69j4-grxj-j64p"}],"summary":"vLLM vulnerable to DoS via large Chat Completion or Tokenization requests with specially crafted `chat_template_kwargs`"}