Critical (9.8) in naver ngrinder. EPSS 1.2% chance of exploitation in the next 30 days. Fixed in org.ngrinder:ngrinder-core 3.5.9.
nGrinder before 3.5.9 allows to accept serialized Java objects from unauthenticated users, which could allow remote attacker to execute arbitrary code via unsafe Java objects deserialization.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
1.2% chance of exploitation in the next 30 days; higher than 67% of CVEs (scores of 2026-10-31)