CVE-2026-88840: Red Hat Hardened Images

Medium severity, CVSS 5.3. EPSS: 0.2% chance of exploitation in the next 30 days.

BusyBox TLS get_client_hello() reads past the end of the input buffer when parsing a truncated ClientHello message.

Affected products

• Red Hat Red Hat Hardened Images

Published 2026-09-23. Last modified 2026-09-26.