{"id":64025,"date":"2025-05-31T00:32:21","date_gmt":"2025-05-30T21:02:21","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2025-48942-vllm-json-schema-deserialization-denial-of-service\/"},"modified":"2025-05-31T00:32:21","modified_gmt":"2025-05-30T21:02:21","slug":"cve-2025-48942-vllm-json-schema-deserialization-denial-of-service","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2025-48942-vllm-json-schema-deserialization-denial-of-service\/","title":{"rendered":"CVE-2025-48942 &#8211; vLLM JSON Schema Deserialization Denial of Service"},"content":{"rendered":"<p><strong>CVE ID : <\/strong>CVE-2025-48942<br \/>\n<br \/>\n<strong>Published : <\/strong> May 30, 2025, 7:15 p.m. | 44\u00a0minutes ago<br \/>\n<br \/>\n<strong>Description : <\/strong>vLLM is an inference and serving engine for large language models (LLMs). In versions 0.8.0 up to but excluding 0.9.0, hitting the  \/v1\/completions API with a invalid json_schema as a Guided Param kills the vllm server. This vulnerability is similar GHSA-9hcf-v7m4-6m2j\/CVE-2025-48943, but for regex instead of a JSON schema. Version 0.9.0 fixes the issue.<br \/>\n<br \/>\n<strong>Severity:<\/strong> 6.5 | MEDIUM<br \/>\n<br \/>\nVisit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID : CVE-2025-48942 Published : May 30, 2025, 7:15 p.m. | 44\u00a0minutes ago Description : vLLM is an inference and serving engine for large language models (LLMs). In versions 0.8.0 up to but excluding 0.9.0, hitting the \/v1\/completions API with a invalid json_schema as a Guided Param kills the vllm server. This vulnerability is &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-64025","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/64025","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=64025"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/64025\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=64025"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=64025"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=64025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}