{"id":13034,"date":"2026-09-04T18:59:50","date_gmt":"2026-09-04T10:59:50","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-54234"},"modified":"2026-09-04T18:59:50","modified_gmt":"2026-09-04T10:59:50","slug":"cve-2026-54234","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-54234","title":{"rendered":"CVE-2026-54234 [HIGH] &#8211; vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. Prio"},"content":{"rendered":"<p>vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. Prior to 0.24.0, a frontend-legal multi-request speculative decoding workload can cause the rejection sampler to produce a recovered token equal to the model vocabulary size boundary value, which is then converted to negative one when the engine selects the next live token for a request and is written back into the drafter&#8217;s input ids; that out-of-vocabulary value is later consumed by the model&#8217;s embedding and attention path and crashes the engine worker with a GPU device-side assertion. The same triggering request sequence is reachable through the public gRPC Generate and Abort endpoints, so a remote client that can send generation requests can crash the shared engine worker, aborting concurrent requests and causing a service-wide denial of service for other clients of the deployment until the worker is restarted. This issue is fixed in version 0.24.0.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. Prior to 0.24.0, a frontend-legal multi-request speculative decoding workload can cause the rejection sampler to p<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-13034","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/13034","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13034"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13034"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13034"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}