Critical (9.8) in ruby-lang ruby. EPSS 6.2% chance of exploitation in the next 30 days.
Type confusion exists in _cancel_eval Ruby's TclTkIp class method. Attacker passing different type of object than String as "retval" argument can cause arbitrary code execution.
Severity
CVSS 3.0
9.8 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
6.2% chance of exploitation in the next 30 days; higher than 93% of CVEs (scores of 2026-11-01)