An integer overflow in Nethermind Juno before v0.12.5 within the Sierra bytecode decompression logic within the "cairo-lang-starknet-classes" library could allow remote attackers to trigger an infinite loop (and high CPU usage) by submitting a malicious Declare v2/v3 transaction. This results in a denial-of-service condition for affected Starknet full-node implementations.
{
"cwe_ids": [
"CWE-190",
"CWE-770"
],
"github_reviewed": true,
"github_reviewed_at": "2025-03-28T22:04:59Z",
"nvd_published_at": "2025-03-27T16:15:30Z",
"severity": "HIGH"
}