CVE-2026-45373: Hmbown Codewhale

High severity, CVSS 7.4. EPSS: 0.4% chance of exploitation in the next 30 days.

CodeWhale is a DeepSeek + MiMo coding agent in terminal. Prior to 0.8.26, although SSRF is validated against hostnames that resolve to private IPv6 addresses, when providing the IPV6 in‌‌ URL‌ as http://[::1], the SSRF defenses do not work. This vulnerability is fixed in 0.8.26.

Affected products

• Hmbown Codewhale: before 0.8.26 (fixed in 0.8.26)

Published 2026-05-28. Last modified 2026-06-17.