{"schema":"threatline.record/2","record":{"id":"CVE-2026-111392","aliases":[],"summary":"SGLang through 0.5.21 KV Cache Poisoning via mm_hashes in /generate","details":"SGLang through 0.5.21 trusts caller-supplied mm_hashes values as the multimodal prefix-cache key, allowing remote attackers to poison cached KV entries across requests. Attackers can send a different image under a known or predicted hash via /generate to disclose another request's image content or corrupt victims' responses.","categories":["Unclassified"],"product":"sglang","vendor":"sgl-project","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111392","source_modified_at":"2026-10-16T19:24:54.109Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"sglang","vendor":"sgl-project","versions":[{"version":"0.5.13","lessThanOrEqual":"0.5.21","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00206,"percentile":0.10053,"score_date":"2026-10-23"},"published_at":"2026-10-16T17:38:44.867Z","modified_at":"2026-10-16T19:24:54.109Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111392","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-16T19:24:54.109Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111392","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/sgl-project/sglang/issues/44641","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/managers/tokenizer_manager.py#L1183-L1215","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/managers/io_struct.py#L205-L215","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/sgl-project/sglang/pull/44653","tags":["patch","issue-tracking"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/sglang-through-0.5.21-kv-cache-poisoning-via-mm-hashes-in-generate","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-16T19:24:20.694655Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-16T19:24:54.109Z","content_hash":"6e1cc4b97e6f25001f1e49a2ff4ba0d4902aefb0ee587f797634dc2adfe26d32"}}