{"id":"CVE-2026-111392","published":"2026-10-16T18:17:38.950","lastModified":"2026-10-16T20:17:20.370","description":"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.","cvssScore":4.8,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","cwes":["CWE-345"],"vendors":[],"products":[],"references":[{"url":"https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/managers/io_struct.py#L205-L215","tags":[]},{"url":"https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/managers/tokenizer_manager.py#L1183-L1215","tags":[]},{"url":"https://github.com/sgl-project/sglang/issues/44641","tags":[]},{"url":"https://github.com/sgl-project/sglang/pull/44653","tags":[]},{"url":"https://www.vulncheck.com/advisories/sglang-through-0.5.21-kv-cache-poisoning-via-mm-hashes-in-generate","tags":[]},{"url":"https://github.com/sgl-project/sglang/issues/44641","tags":[]}],"exploitRefs":[{"url":"https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/managers/io_struct.py#L205-L215","tags":[]},{"url":"https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/managers/tokenizer_manager.py#L1183-L1215","tags":[]},{"url":"https://github.com/sgl-project/sglang/issues/44641","tags":[]},{"url":"https://github.com/sgl-project/sglang/pull/44653","tags":[]},{"url":"https://github.com/sgl-project/sglang/issues/44641","tags":[]}],"hasPoc":true,"ai":null}