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.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-345"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111392.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0.5.13"
},
{
"last_affected": "0.5.21"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "0"
},
{
"last_affected": "0.5.21"
}
],
"source": "DESCRIPTION"
}
]
}