Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, RedisArrayAggregator pre-allocates ArrayList with initial capacity equal to the RESP array element count declared in an array header. That count is taken from the wire before the corresponding child messages exist. A small malicious header can claim a huge initial capacity. Versions 4.1.135.Final and 4.2.15.Final patch the issue.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-400",
"CWE-770"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50011.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "4.2.0.Final"
},
{
"fixed": "4.2.15.Final"
},
{
"fixed": "4.1.135.Final"
}
],
"source": "AFFECTED_FIELD"
}
]
}