Medium severity4.8NVD Advisory· Published Oct 16, 2026· Updated Oct 16, 2026
CVE-2026-111392
CVE-2026-111392
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.
Affected products
1- Range: <=0.5.21
Patches
Vulnerability mechanics
References
5- github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/managers/io_struct.pynvd
- github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/managers/tokenizer_manager.pynvd
- github.com/sgl-project/sglang/issues/44641nvd
- github.com/sgl-project/sglang/pull/44653nvd
- www.vulncheck.com/advisories/sglang-through-0.5.21-kv-cache-poisoning-via-mm-hashes-in-generatenvd
News mentions
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