OW2 ASM 5.0 before 9.11 contains an excessive memory allocation vulnerability in ClassReader.readBootstrapMethodsAttribute() that sizes an int array from num_bootstrap_methods without validating attribute_length. Attackers can supply a crafted class file of about 100 bytes that forces roughly 2 GB allocation, causing an OutOfMemoryError that crashes the JVM or consuming thread.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-789"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110257.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "5.0"
},
{
"fixed": "9.11"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"fixed": "eb5fa95bb0670eaec2ecf9b8a3a501b48e5a967c"
}
],
"source": "REFERENCES_COMMIT"
}
]
}