{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0.5.13"
                  },
                  {
                    "last_affected": "0.5.21"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          },
          "events": [
            {
              "introduced": "28b095c01005d4a3a2a5b637b7d028b07fba31b2"
            },
            {
              "last_affected": "e00930c5489053f26d86b179cee0d087f846acbb"
            }
          ],
          "repo": "https://github.com/sgl-project/sglang",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-345"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111392.json"
  },
  "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.",
  "id": "CVE-2026-111392",
  "modified": "2026-10-21T02:30:46.605461598Z",
  "published": "2026-10-16T17:38:44.867Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111392.json"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/sgl-project/sglang"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/managers/io_struct.py#L205-L215"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/sgl-project/sglang/blob/v0.5.21/python/sglang/srt/managers/tokenizer_manager.py#L1183-L1215"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sgl-project/sglang/issues/44641"
    },
    {
      "type": "FIX",
      "url": "https://github.com/sgl-project/sglang/pull/44653"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111392"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/sglang-through-0.5.21-kv-cache-poisoning-via-mm-hashes-in-generate"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "SGLang through 0.5.21 KV Cache Poisoning via mm_hashes in /generate"
}