Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains a missing GC rooting vulnerability that leaves references live across try_call unrooted when compiling Wasm modules. Attackers can supply Wasm modules whose callee triggers garbage collection, leaving stale or dangling references that cause GC heap corruption or incorrect execution.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-416"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/115xxx/CVE-2026-115379.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "47.0.0"
},
{
"fixed": "48.0.4"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "49.0.0"
},
{
"fixed": "49.0.2"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}