{"id":"CVE-2026-92971","summary":"InternLM LMDeploy through 0.17.0 Assertion Denial of Service","details":"InternLM LMDeploy through 0.17.0 contains a reachable assertion vulnerability in the DistServe decode migration loop that allows unauthenticated attackers to terminate the inference engine. Attackers can submit a migration_request with an empty remote_block_ids list to trigger an AssertionError that crashes the engine loop and causes subsequent inference requests to fail.","modified":"2026-09-18T03:48:43.233116255Z","published":"2026-09-17T13:43:15.952Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-617"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92971.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92971.json"},{"type":"PACKAGE","url":"https://github.com/InternLM/lmdeploy"},{"type":"ARTICLE","url":"https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/pytorch/engine/engine_loop.py#L560-L564"},{"type":"ARTICLE","url":"https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/pytorch/utils.py#L187-L214"},{"type":"ARTICLE","url":"https://github.com/InternLM/lmdeploy/blob/v0.17.0/lmdeploy/serve/openai/endpoints/completions.py#L130-L136"},{"type":"REPORT","url":"https://github.com/InternLM/lmdeploy/issues/4965"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92971"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/internlm-lmdeploy-through-0.17.0-assertion-denial-of-service"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/internlm/lmdeploy","events":[{"introduced":"0"},{"last_affected":"f8b53077c18e85400381f7b3d696199b2939ef75"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"0.17.0"}],"source":"AFFECTED_FIELD"}}],"versions":["v0.14.0","v0.17.0","v0.16.0","v0.15.0","0.14.0a2","v0.13.0","v0.12.3","v0.12.2","v0.12.1","v0.12.0","v0.11.1","v0.11.0","v0.10.2","v0.10.1","v0.10.0","v0.9.2","v0.9.1","v0.9.0","v0.8.0","v0.7.2.post1","v0.7.2","v0.7.1","v0.7.0.post3","v0.7.0.post2","v0.7.0.post1","v0.7.0","0.6.5","v0.6.4","v0.6.3","v0.6.2","v0.6.1","v0.6.0","v0.6.0a0","v0.5.3","v0.5.2.post1","v0.5.2","v0.5.1","v0.5.0","v0.4.2","v0.4.1","v0.4.0","v0.3.0","v0.2.6","v0.2.5","v0.2.4","v0.2.3","v0.2.2","v0.2.1","v0.2.0","v0.1.0","v0.1.0a2","v0.1.0a1","v0.1.0a0","v0.0.14","v0.0.13","v0.0.12","v0.0.11","v0.0.10","v0.0.9","v0.0.8","v0.0.7","v0.0.6","v0.0.5","v0.0.4","v0.0.3","v0.0.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92971.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}